mirror of
https://github.com/LCTT/TranslateProject.git
synced 2025-01-25 23:11:02 +08:00
Merge branch 'master' of https://github.com/LCTT/TranslateProject into new
This commit is contained in:
geekpi
commit
b4d4b9a41f
@ -1,5 +1,12 @@
|
||||
30 Best Sources For Linux / *BSD / Unix Documentation On the Web
|
||||
# sober-wang 翻译中
|
||||
|
||||
|
||||
|
||||
30 Best Sources For Linux / *BSD / Unix Documentation On the We
|
||||
======
|
||||
|
||||
|
||||
|
||||
Man pages are written by sys-admin and developers for IT techs, and are intended more as a reference than as a how to. Man pages are very useful for people who are already familiar with Linux, Unix, and BSD operating systems. Use man pages when you just need to know the syntax for particular commands or configuration file, but they are not helpful for new Linux users. Man pages are not good for learning something new for the first time. Here are thirty best documentation sites on the web for learning Linux and Unix like operating systems.
|
||||
|
||||
![Dennis Ritchie and Ken Thompson working with UNIX PDP11][1]
|
||||
@ -12,8 +19,8 @@ Please note that BSD manpages are usually better as compare to Linux.
|
||||
|
||||
RHEL is developed by Red Hat and targeted toward the commercial market. It has one of the best documentations covering basis of RHEL to advanced topics like security, SELinux, virtualization, directory server, clustering, JBOSS, HPC, and much more. Red Hat documentation has been translated into twenty-two languages and is available in multi-page HTML, single-page HTML, PDF, and EPUB formats. The good news is you can use the same documentation for CentOS or Scientific Linux (community enterprise distros). All of these documents ship with the OS, so if you don't have a network connection, then you have them there as well. The RHEL docs **covers everything from installation to configuring clusters**. The only downside is you need to be a paid customer. This is perfect for an enterprise company.
|
||||
|
||||
1. RHEL Documentation: [in HTML/PDF format][3]
|
||||
2. Support forums: Only available to Red Hat customer portal to submit a support case.
|
||||
1. RHEL Documentation: [in HTML/PDF format][3]
|
||||
2. Support forums: Only available to Red Hat customer portal to submit a support case.
|
||||
|
||||
|
||||
|
||||
@ -366,87 +373,87 @@ via: https://www.cyberciti.biz/tips/linux-unix-bsd-documentations.html
|
||||
本文由 [LCTT](https://github.com/LCTT/TranslateProject) 原创编译，[Linux中国](https://linux.cn/) 荣誉推出
|
||||
|
||||
[a]:https://www.cyberciti.biz
|
||||
[1]:https://www.cyberciti.biz/media/new/tips/2011/12/unix-pdp11.jpg (Dennis Ritchie and Ken Thompson working with UNIX PDP11)
|
||||
[2]:https://www.cyberciti.biz/media/new/tips/2011/12/redhat-enterprise-linux-docs-150x150.png (Red hat Enterprise Linux Docs)
|
||||
[1]:https://www.cyberciti.biz/media/new/tips/2011/12/unix-pdp11.jpg "Dennis Ritchie and Ken Thompson working with UNIX PDP11"
|
||||
[2]:https://www.cyberciti.biz/media/new/tips/2011/12/redhat-enterprise-linux-docs-150x150.png "Red hat Enterprise Linux Docs"
|
||||
[3]:https://access.redhat.com/documentation/en-us/
|
||||
[4]:https://www.cyberciti.biz/media/new/tips/2011/12/centos-linux-wiki-150x150.png (Centos Linux Wiki, Support, Documents)
|
||||
[5]:https://www.cyberciti.biz/media/new/tips/2011/12/arch-linux-wiki-150x150.png (Arch Linux wiki and tutorials )
|
||||
[4]:https://www.cyberciti.biz/media/new/tips/2011/12/centos-linux-wiki-150x150.png "Centos Linux Wiki, Support, Documents"
|
||||
[5]:https://www.cyberciti.biz/media/new/tips/2011/12/arch-linux-wiki-150x150.png "Arch Linux wiki and tutorials "
|
||||
[6]:https://wiki.archlinux.org/index.php/Category:Networking_%28English%29
|
||||
[7]:https://bbs.archlinux.org/
|
||||
[8]:https://wiki.archlinux.org/
|
||||
[9]:https://www.cyberciti.biz/media/new/tips/2011/12/gentoo-linux-wiki1-150x150.png (Gentoo Linux Handbook and Wiki)
|
||||
[9]:https://www.cyberciti.biz/media/new/tips/2011/12/gentoo-linux-wiki1-150x150.png "Gentoo Linux Handbook and Wiki"
|
||||
[10]:http://www.gentoo.org/doc/en/handbook/
|
||||
[11]:https://wiki.gentoo.org
|
||||
[12]:https://forums.gentoo.org/
|
||||
[13]:http://gentoo-wiki.com
|
||||
[14]:https://www.cyberciti.biz/media/new/tips/2011/12/ubuntu-linux-wiki.png (Ubuntu Linux Wiki and Forums)
|
||||
[14]:https://www.cyberciti.biz/media/new/tips/2011/12/ubuntu-linux-wiki.png "Ubuntu Linux Wiki and Forums"
|
||||
[15]:https://help.ubuntu.com/community
|
||||
[16]:https://help.ubuntu.com/
|
||||
[17]:https://ubuntuforums.org/
|
||||
[18]:https://www.cyberciti.biz/media/new/tips/2011/12/ibm-devel.png (IBM: Technical for Linux programmers and system administrators)
|
||||
[18]:https://www.cyberciti.biz/media/new/tips/2011/12/ibm-devel.png "IBM: Technical for Linux programmers and system administrators"
|
||||
[19]:https://www.ibm.com/developerworks/learn/linux/index.html
|
||||
[20]:https://www.ibm.com/developerworks/community/forums/html/public?lang=en
|
||||
[21]:https://www.cyberciti.biz/media/new/tips/2011/12/freebsd-docs.png (Freebsd Documentation)
|
||||
[22]:https://www.cyberciti.biz/media/new/tips/2011/12/bash-hackers-wiki-150x150.png (Bash hackers wiki for bash users)
|
||||
[21]:https://www.cyberciti.biz/media/new/tips/2011/12/freebsd-docs.png "Freebsd Documentation"
|
||||
[22]:https://www.cyberciti.biz/media/new/tips/2011/12/bash-hackers-wiki-150x150.png "Bash hackers wiki for bash users"
|
||||
[23]:http://wiki.bash-hackers.org/doku.php
|
||||
[24]:https://www.cyberciti.biz/media/new/tips/2011/12/bash-faq-150x150.png (Bash FAQ: Answers to frequently asked questions about GNU/BASH)
|
||||
[24]:https://www.cyberciti.biz/media/new/tips/2011/12/bash-faq-150x150.png "Bash FAQ: Answers to frequently asked questions about GNU/BASH"
|
||||
[25]:http://mywiki.wooledge.org/BashPitfalls
|
||||
[26]:https://mywiki.wooledge.org/BashFAQ
|
||||
[27]:https://www.cyberciti.biz/media/new/tips/2011/12/howtoforge-150x150.png (Howtoforge tutorials)
|
||||
[27]:https://www.cyberciti.biz/media/new/tips/2011/12/howtoforge-150x150.png "Howtoforge tutorials"
|
||||
[28]:https://howtoforge.com/
|
||||
[29]:https://www.cyberciti.biz/media/new/tips/2011/12/openbsd-faq-150x150.png (OpenBSD Documenation)
|
||||
[29]:https://www.cyberciti.biz/media/new/tips/2011/12/openbsd-faq-150x150.png "OpenBSD Documenation"
|
||||
[30]:https://www.openbsd.org/faq/index.html
|
||||
[31]:https://www.openbsd.org/mail.html
|
||||
[32]:https://www.cyberciti.biz/media/new/tips/2011/12/calomel_org.png (Open Source Research and Reference Documentation)
|
||||
[32]:https://www.cyberciti.biz/media/new/tips/2011/12/calomel_org.png "Open Source Research and Reference Documentation"
|
||||
[33]:https://calomel.org
|
||||
[34]:https://www.cyberciti.biz/media/new/tips/2011/12/slackware-linux-book-150x150.png (Slackware Linux Book and Documentation )
|
||||
[34]:https://www.cyberciti.biz/media/new/tips/2011/12/slackware-linux-book-150x150.png "Slackware Linux Book and Documentation "
|
||||
[35]:http://www.slackbook.org/
|
||||
[36]:https://www.cyberciti.biz/media/new/tips/2011/12/tldp-150x150.png (Linux Learning Site and Documentation )
|
||||
[36]:https://www.cyberciti.biz/media/new/tips/2011/12/tldp-150x150.png "Linux Learning Site and Documentation "
|
||||
[37]:http://tldp.org/LDP/abs/html/index.html
|
||||
[38]:http://tldp.org/HOWTO/HOWTO-INDEX/howtos.html
|
||||
[39]:http://tldp.org/
|
||||
[40]:https://www.cyberciti.biz/media/new/tips/2011/12/linuxhomenetworking-150x150.png (Linux Home Networking )
|
||||
[40]:https://www.cyberciti.biz/media/new/tips/2011/12/linuxhomenetworking-150x150.png "Linux Home Networking "
|
||||
[41]:http://www.linuxhomenetworking.com/
|
||||
[42]:https://www.cyberciti.biz/media/new/tips/2011/12/linux-action-show-150x150.png (Linux Podcast )
|
||||
[42]:https://www.cyberciti.biz/media/new/tips/2011/12/linux-action-show-150x150.png "Linux Podcast "
|
||||
[43]:http://www.jupiterbroadcasting.com/show/linuxactionshow/
|
||||
[44]:https://www.commandlinefu.com/commands/browse/sort-by-votes
|
||||
[45]:https://www.cyberciti.biz/media/new/tips/2011/12/commandlinefu.png (The best Unix / Linux Commands )
|
||||
[45]:https://www.cyberciti.biz/media/new/tips/2011/12/commandlinefu.png "The best Unix / Linux Commands "
|
||||
[46]:https://commandlinefu.com/
|
||||
[47]:https://www.debian-administration.org/hof
|
||||
[48]:https://www.cyberciti.biz/media/new/tips/2011/12/debian-admin.png (Debian Linux Adminstration: Tips and Tutorial For Sys Admin)
|
||||
[48]:https://www.cyberciti.biz/media/new/tips/2011/12/debian-admin.png "Debian Linux Adminstration: Tips and Tutorial For Sys Admin"
|
||||
[49]:https://www.debian-administration.org/
|
||||
[50]:https://www.cyberciti.biz/media/new/tips/2011/12/catonmat-150x150.png (Sed, Awk, Perl Tutorials)
|
||||
[50]:https://www.cyberciti.biz/media/new/tips/2011/12/catonmat-150x150.png "Sed, Awk, Perl Tutorials"
|
||||
[51]:http://www.catonmat.net/blog/worlds-best-introduction-to-sed/
|
||||
[52]:https://www.catonmat.net/blog/sed-one-liners-explained-part-one/
|
||||
[53]:https://www.catonmat.net/blog/the-definitive-guide-to-bash-command-line-history/
|
||||
[54]:https://www.catonmat.net/blog/awk-one-liners-explained-part-one/
|
||||
[55]:https://catonmat.net/
|
||||
[56]:https://www.cyberciti.biz/media/new/tips/2011/12/debian-wiki-150x150.png (Debian Linux Tutorials and Wiki)
|
||||
[56]:https://www.cyberciti.biz/media/new/tips/2011/12/debian-wiki-150x150.png "Debian Linux Tutorials and Wiki"
|
||||
[57]:https://www.debian.org/doc/
|
||||
[58]:https://wiki.debian.org/
|
||||
[59]:https://www.debian.org/support
|
||||
[60]:http://swift.siphos.be/linux_sea/
|
||||
[61]:https://www.cyberciti.biz/media/new/tips/2011/12/orelly-150x150.png (Oreilly Free Linux / Unix / Php / Javascript / Ubuntu Books)
|
||||
[61]:https://www.cyberciti.biz/media/new/tips/2011/12/orelly-150x150.png "Oreilly Free Linux / Unix / Php / Javascript / Ubuntu Books"
|
||||
[62]:http://commons.oreilly.com/wiki/index.php/O%27Reilly_Commons
|
||||
[63]:https://www.cyberciti.biz/media/new/tips/2011/12/ubuntu-guide-150x150.png (Ubuntu Book For New Users)
|
||||
[63]:https://www.cyberciti.biz/media/new/tips/2011/12/ubuntu-guide-150x150.png "Ubuntu Book For New Users"
|
||||
[64]:http://ubuntupocketguide.com/
|
||||
[65]:https://www.cyberciti.biz/media/new/tips/2011/12/rute-150x150.png (GNU/LINUX system administration free book)
|
||||
[65]:https://www.cyberciti.biz/media/new/tips/2011/12/rute-150x150.png "GNU/LINUX system administration free book"
|
||||
[66]:https://web.archive.org/web/20160204213406/http://rute.2038bug.com/rute.html.gz
|
||||
[67]:https://www.cyberciti.biz/media/new/tips/2011/12/advanced-linux-programming-150x150.png (Download Advanced Linux Programming PDF version)
|
||||
[67]:https://www.cyberciti.biz/media/new/tips/2011/12/advanced-linux-programming-150x150.png "Download Advanced Linux Programming PDF version"
|
||||
[68]:https://github.com/MentorEmbedded/advancedlinuxprogramming
|
||||
[69]:https://www.cyberciti.biz/media/new/tips/2011/12/lpic-150x150.png (Download Linux Professional Institute Certification PDF Book)
|
||||
[69]:https://www.cyberciti.biz/media/new/tips/2011/12/lpic-150x150.png "Download Linux Professional Institute Certification PDF Book"
|
||||
[70]:http://academy.delmar.edu/Courses/ITSC1358/eBooks/LPI-101.LinuxTrainingCourseNotes.pdf
|
||||
[71]://www.cyberciti.biz/faq/top5-linux-video-editing-system-software/
|
||||
[72]:https://www.cyberciti.biz/media/new/tips/2011/12/floss-manuals.png (Download manuals about free and open source software)
|
||||
[72]:https://www.cyberciti.biz/media/new/tips/2011/12/floss-manuals.png "Download manuals about free and open source software"
|
||||
[73]:https://flossmanuals.net/
|
||||
[74]:https://www.cyberciti.biz/media/new/tips/2011/12/linux-starter-150x150.png (New to Linux? Start Linux starter book [ PDF version ])
|
||||
[74]:https://www.cyberciti.biz/media/new/tips/2011/12/linux-starter-150x150.png "New to Linux? Start Linux starter book [ PDF version ]"
|
||||
[75]:http://www.tuxradar.com/linuxstarterpack
|
||||
[76]:https://linux.com
|
||||
[77]:https://lwn.net/
|
||||
[78]:http://hints.macworld.com/
|
||||
[79]:https://developer.apple.com/library/mac/navigation/
|
||||
[80]:https://developer.apple.com/library/mac/#documentation/OpenSource/Conceptual/ShellScripting/Introduction/Introduction.html
|
||||
[81]:https://support.apple.com/kb/index?page=search&locale=en_US&q=
|
||||
[81]:https://support.apple.com/kb/index?page=search&locale=en_US&q=
|
||||
[82]:https://www.netbsd.org/docs/
|
||||
[83]:https://www.flickr.com/photos/9479603@N02/3311745151/in/set-72157614479572582/
|
||||
[84]:https://twitter.com/nixcraft
|
||||
|
||||
@ -1,3 +1,5 @@
|
||||
ucasFL translating
|
||||
|
||||
How To Set Up PF Firewall on FreeBSD to Protect a Web Server
|
||||
======
|
||||
|
||||
|
||||
@ -1,3 +1,5 @@
|
||||
ucasFL translating
|
||||
|
||||
Trash-Cli : A Command Line Interface For Trashcan On Linux
|
||||
======
|
||||
Everyone knows about `Trashcan` which is common for all users like Linux, or Windows, or Mac. Whenever you delete a file or folder, it will be moved to trash.
|
||||
|
||||
@ -1,3 +1,5 @@
|
||||
ucasFL translating
|
||||
|
||||
# Scrot: Linux command-line screen grabs made simple
|
||||
|
||||
by [Scott Nesbitt][a] · November 30, 2017
|
||||
|
||||
@ -1,3 +1,5 @@
|
||||
ucasFL translating
|
||||
|
||||
How To Compress And Decompress Files In Linux
|
||||
======
|
||||
|
||||
|
||||
@ -1,3 +1,5 @@
|
||||
ucasFL translating
|
||||
|
||||
8 great Python libraries for side projects
|
||||
======
|
||||
|
||||
|
||||
@ -1,3 +1,5 @@
|
||||
translating---geekpi
|
||||
|
||||
Find your systems easily on a LAN with mDNS
|
||||
======
|
||||
|
||||
|
||||
@ -0,0 +1,246 @@
|
||||
3 top open source JavaScript chart libraries
|
||||
======
|
||||
|
||||
|
||||
|
||||
Charts and graphs are important for visualizing data and making websites appealing. Visual presentations make it easier to analyze big chunks of data and convey information. JavaScript chart libraries enable you to visualize data in a stunning, easy to comprehend, and interactive manner and improve your website's design.
|
||||
|
||||
In this article, learn about three top open source JavaScript chart libraries.
|
||||
|
||||
### 1\. Chart.js
|
||||
|
||||
[Chart.js][1] is an open source JavaScript library that allows you to create animated, beautiful, and interactive charts on your application. It's available under the MIT License.
|
||||
|
||||
With Chart.js, you can create various impressive charts and graphs, including bar charts, line charts, area charts, linear scale, and scatter charts. It is completely responsive across various devices and utilizes the HTML5 Canvas element for rendering.
|
||||
|
||||
Here is example code that draws a bar chart using the library. We'll include it in this example using the Chart.js content delivery network (CDN). Note that the data used is for illustration purposes only.
|
||||
```
|
||||
<!DOCTYPE html>
|
||||
<html>
|
||||
<head>
|
||||
<script src="https://cdnjs.cloudflare.com/ajax/libs/Chart.js/2.5.0/Chart.min.js"></script>
|
||||
</head>
|
||||
|
||||
<body>
|
||||
|
||||
<canvas id="bar-chart" width=300" height="150"></canvas>
|
||||
|
||||
|
||||
<script>
|
||||
|
||||
new Chart(document.getElementById("bar-chart"), {
|
||||
type: 'bar',
|
||||
data: {
|
||||
labels: ["North America", "Latin America", "Europe", "Asia", "Africa"],
|
||||
datasets: [
|
||||
{
|
||||
label: "Number of developers (millions)",
|
||||
backgroundColor: ["red", "blue","yellow","green","pink"],
|
||||
data: [7,4,6,9,3]
|
||||
}
|
||||
]
|
||||
},
|
||||
options: {
|
||||
legend: { display: false },
|
||||
title: {
|
||||
display: true,
|
||||
text: 'Number of Developers in Every Continent'
|
||||
},
|
||||
|
||||
scales: {
|
||||
yAxes: [{
|
||||
ticks: {
|
||||
beginAtZero:true
|
||||
}
|
||||
}]
|
||||
}
|
||||
|
||||
}
|
||||
|
||||
|
||||
});
|
||||
|
||||
</script>
|
||||
|
||||
|
||||
</body>
|
||||
</html>
|
||||
```
|
||||
|
||||
As you can see from this code, bar charts are constructed by setting **type** to **bar**. You can change the direction of the bar to other types—such as setting **type** to **horizontalBar**.
|
||||
|
||||
The bars' colors are set by providing the type of color in the **backgroundColor** array parameter.
|
||||
|
||||
The colors are allocated to the label and data that share the same index in their corresponding array. For example, "Latin America," the second label, will be set to "blue" (the second color) and 4 (the second number in the data).
|
||||
|
||||
Here is the output of this code.
|
||||
|
||||
|
||||
|
||||
### 2\. Chartist.js
|
||||
|
||||
[Chartist.js][2] is a simple JavaScript animation library that allows you to create customizable and beautiful responsive charts and other designs. The open source library is available under the WTFPL or MIT License.
|
||||
|
||||
The library was developed by a group of developers who were dissatisfied with existing charting tools, so it offers wonderful functionalities to designers and developers.
|
||||
|
||||
After including the Chartist.js library and its CSS files in your project, you can use them to create various types of charts, including animations, bar charts, and line charts. It utilizes SVG to render the charts dynamically.
|
||||
|
||||
Here is an example of code that draws a pie chart using the library.
|
||||
```
|
||||
<!DOCTYPE html>
|
||||
<html>
|
||||
<head>
|
||||
|
||||
<link href="https//cdn.jsdelivr.net/chartist.js/latest/chartist.min.css" rel="stylesheet" type="text/css" />
|
||||
|
||||
<style>
|
||||
.ct-series-a .ct-slice-pie {
|
||||
fill: hsl(100, 20%, 50%); /* filling pie slices */
|
||||
stroke: white; /*giving pie slices outline */
|
||||
stroke-width: 5px; /* outline width */
|
||||
}
|
||||
|
||||
.ct-series-b .ct-slice-pie {
|
||||
fill: hsl(10, 40%, 60%);
|
||||
stroke: white;
|
||||
stroke-width: 5px;
|
||||
}
|
||||
|
||||
.ct-series-c .ct-slice-pie {
|
||||
fill: hsl(120, 30%, 80%);
|
||||
stroke: white;
|
||||
stroke-width: 5px;
|
||||
}
|
||||
|
||||
.ct-series-d .ct-slice-pie {
|
||||
fill: hsl(90, 70%, 30%);
|
||||
stroke: white;
|
||||
stroke-width: 5px;
|
||||
}
|
||||
.ct-series-e .ct-slice-pie {
|
||||
fill: hsl(60, 140%, 20%);
|
||||
stroke: white;
|
||||
stroke-width: 5px;
|
||||
}
|
||||
|
||||
</style>
|
||||
</head>
|
||||
|
||||
<body>
|
||||
|
||||
<div class="ct-chart ct-golden-section"></div>
|
||||
|
||||
<script src="https://cdn.jsdelivr.net/chartist.js/latest/chartist.min.js"></script>
|
||||
|
||||
<script>
|
||||
|
||||
var data = {
|
||||
series: [45, 35, 20]
|
||||
};
|
||||
|
||||
var sum = function(a, b) { return a + b };
|
||||
|
||||
new Chartist.Pie('.ct-chart', data, {
|
||||
labelInterpolationFnc: function(value) {
|
||||
return Math.round(value / data.series.reduce(sum) * 100) + '%';
|
||||
}
|
||||
});
|
||||
</script>
|
||||
</body>
|
||||
</html>
|
||||
```
|
||||
|
||||
Instead of specifying various style-related components of your project, the Chartist JavaScript library allows you to use various pre-built CSS styles. You can use them to control the appearance of the created charts.
|
||||
|
||||
|
||||
For example, the pre-created CSS classis used to build the container for the pie chart. And, theclass is used to get the aspect ratios, which scale with responsive designs and saves you the hassle of calculating fixed dimensions. Chartist also provides other classes of container ratios you can utilize in your project.
|
||||
|
||||
For styling the various pie slices, you can use the default . **ct-series-a** class. The letter **a** is iterated with every series count (a, b, c, etc.) such that it corresponds with the slice to be styled.
|
||||
|
||||
The **Chartist.Pie** method is used for creating a pie chart. To create another type of chart, such as a line chart, use **Chartist.Line.**
|
||||
|
||||
Here is the output of the code.
|
||||
|
||||
|
||||
|
||||
### 3\. D3.js
|
||||
|
||||
[D3.js][3] is another great open source JavaScript chart library. It's available under the BSD license. D3 is mainly used for manipulating and adding interactivity to documents based on the provided data.
|
||||
|
||||
You can use this amazing 3D animation library to visualize your data using HTML5, SVG, and CSS and make your website appealing. Essentially, D3 enables you to bind data to the Document Object Model (DOM) and then use data-based functions to make changes to the document.
|
||||
|
||||
Here is example code that draws a simple bar chart using the library.
|
||||
```
|
||||
<!DOCTYPE html>
|
||||
<html>
|
||||
<head>
|
||||
|
||||
<style>
|
||||
.chart div {
|
||||
font: 15px sans-serif;
|
||||
background-color: lightblue;
|
||||
text-align: right;
|
||||
padding:5px;
|
||||
margin:5px;
|
||||
color: white;
|
||||
font-weight: bold;
|
||||
}
|
||||
|
||||
</style>
|
||||
</head>
|
||||
|
||||
<body>
|
||||
|
||||
<div class="chart"></div>
|
||||
|
||||
<script src="https://cdnjs.cloudflare.com/ajax/libs/d3/5.5.0/d3.min.js"></script>
|
||||
|
||||
<script>
|
||||
|
||||
var data = [342,222,169,259,173];
|
||||
|
||||
d3.select(".chart")
|
||||
.selectAll("div")
|
||||
.data(data)
|
||||
.enter()
|
||||
.append("div")
|
||||
.style("width", function(d){ return d + "px"; })
|
||||
.text(function(d) { return d; });
|
||||
|
||||
|
||||
</script>
|
||||
</body>
|
||||
</html>
|
||||
```
|
||||
|
||||
The main concept in using the D3 library is to first apply CSS-style selections to point to the DOM nodes and then apply operators to manipulate them—just like in other DOM frameworks like jQuery.
|
||||
|
||||
After the data is bound to a document, the . **enter()** function is invoked to build new nodes for incoming data. All the methods invoked after the . **enter()** function will be called for every item in the data.
|
||||
|
||||
Here is the output of the code.
|
||||
|
||||
|
||||
|
||||
### Wrapping up
|
||||
|
||||
[JavaScript][4] charting libraries provide you with powerful tools for implementing data visualization on your web properties. With these three open source libraries, you can enhance the beauty and interactivity of your websites.
|
||||
|
||||
Do you know of another powerful frontend library for creating JavaScript animation effects? Please let us know in the comment section below.
|
||||
|
||||
|
||||
--------------------------------------------------------------------------------
|
||||
|
||||
via: https://opensource.com/article/18/9/open-source-javascript-chart-libraries
|
||||
|
||||
作者：[Dr.Michael J.Garbade][a]
|
||||
选题：[lujun9972](https://github.com/lujun9972)
|
||||
译者：[译者ID](https://github.com/译者ID)
|
||||
校对：[校对者ID](https://github.com/校对者ID)
|
||||
|
||||
本文由 [LCTT](https://github.com/LCTT/TranslateProject) 原创编译，[Linux中国](https://linux.cn/) 荣誉推出
|
||||
|
||||
[a]: https://opensource.com/users/drmjg
|
||||
[1]: https://www.chartjs.org/
|
||||
[2]: https://gionkunz.github.io/chartist-js/
|
||||
[3]: https://d3js.org/
|
||||
[4]: https://www.liveedu.tv/guides/programming/javascript/
|
||||
@ -0,0 +1,56 @@
|
||||
Two open source alternatives to Flash Player
|
||||
======
|
||||
|
||||
|
||||
|
||||
In July 2017, Adobe sounded the [death knell][1] for its Flash Media Player, announcing it would end support for the once-ubiquitous online video player in 2020. In truth, however, Flash has been on the decline for the past eight years following a rash of zero-day attacks that damaged its reputation. Its future dimmed after Apple announced in 2010 it would not support the technology, and its demise accelerated in 2016 after Google stopped enabling Flash by default (in favor of HTML5) in the Chrome browser.
|
||||
|
||||
Even so, Adobe is still issuing monthly updates for the software, which has slipped from being used on 28.5% of all websites in 2011 to [only 4.4.%][2] as of August 2018. More evidence of Flash’s decline: Google director of engineering [Parisa Tabriz said][3] the number of Chrome users who access Flash content via the browser has declined from 80% in 2014 to under eight percent in 2018.
|
||||
|
||||
Although few* video creators are publishing in Flash format today, there are still a lot of Flash videos out there that people will want to access for years to come. Given that the official application’s days are numbered, open source software creators have a great opportunity to step in with alternatives to Adobe Flash Media Player. Two of those applications are Lightspark and GNU Gnash. Neither are perfect substitutions, but help from willing contributors could make them viable alternatives.
|
||||
|
||||
### Lightspark
|
||||
|
||||
[Lightspark][4] is a Flash Player alternative for Linux machines. While it’s still in alpha, development has accelerated since Adobe announced it would sunset Flash in 2017. According to its website, Lightspark implements about 60% of the Flash APIs and [works][5] on many leading websites including BBC News, Google Play Music, and Amazon Music.
|
||||
|
||||
Lightspark is written in C++/C and licensed under [LGPLv3][6]. The project lists 41 contributors and is actively soliciting bug reports and other contributions. For more information, check out its [GitHub repository][5].
|
||||
|
||||
### GNU Gnash
|
||||
|
||||
[GNU Gnash][7] is a Flash Player for GNU/Linux operating systems including Ubuntu, Fedora, and Debian. It works as standalone software and as a plugin for the Firefox and Konqueror browsers.
|
||||
|
||||
Gnash’s main drawback is that it doesn’t support the latest versions of Flash files—it supports most Flash SWF v7 features, some v8 and v9 features, and offers no support for v10 files. It’s in beta release, and since it’s licensed under the [GNU GPLv3 or later][8], you can help contribute to modernizing it. Access its [project page][9] for more information.
|
||||
|
||||
### Want to create Flash?
|
||||
|
||||
*Just because most people aren't publishing Flash videos these days, that doesn't mean there will never, ever be a need to create SWF files. If you find yourself in that position, these two open source tools might help:
|
||||
|
||||
* [Motion-Twin ActionScript 2 Compiler][10] (MTASC): A command-line compiler that can generate SWF files without Adobe Animate (the current iteration of Adobe's video-creator software).
|
||||
* [Ming][11]: A library written in C that can generate SWF files. It also contains some [utilities][12] you can use to work with Flash files.
|
||||
|
||||
|
||||
|
||||
--------------------------------------------------------------------------------
|
||||
|
||||
via: https://opensource.com/alternatives/flash-media-player
|
||||
|
||||
作者：[Opensource.com][a]
|
||||
选题：[lujun9972](https://github.com/lujun9972)
|
||||
译者：[译者ID](https://github.com/译者ID)
|
||||
校对：[校对者ID](https://github.com/校对者ID)
|
||||
|
||||
本文由 [LCTT](https://github.com/LCTT/TranslateProject) 原创编译，[Linux中国](https://linux.cn/) 荣誉推出
|
||||
|
||||
[a]: https://opensource.com
|
||||
[1]: https://theblog.adobe.com/adobe-flash-update/
|
||||
[2]: https://w3techs.com/technologies/details/cp-flash/all/all
|
||||
[3]: https://www.bleepingcomputer.com/news/security/google-chrome-flash-usage-declines-from-80-percent-in-2014-to-under-8-percent-today/
|
||||
[4]: http://lightspark.github.io/
|
||||
[5]: https://github.com/lightspark/lightspark/wiki/Site-Support
|
||||
[6]: https://github.com/lightspark/lightspark/blob/master/COPYING
|
||||
[7]: https://www.gnu.org/software/gnash/
|
||||
[8]: http://www.gnu.org/licenses/gpl-3.0.html
|
||||
[9]: http://savannah.gnu.org/projects/gnash/
|
||||
[10]: http://tech.motion-twin.com/mtasc.html
|
||||
[11]: http://www.libming.org/
|
||||
[12]: http://www.libming.org/WhatsIncluded
|
||||
238
sources/tech/20180906 What a shell dotfile can do for you.md
Normal file
238
sources/tech/20180906 What a shell dotfile can do for you.md
Normal file
@ -0,0 +1,238 @@
|
||||
What a shell dotfile can do for you
|
||||
======
|
||||
|
||||
|
||||
|
||||
Ask not what you can do for your shell dotfile, but what a shell dotfile can do for you!
|
||||
|
||||
I've been all over the OS map, but for the past several years my daily drivers have been Macs. For a long time, I used Bash, but when a few friends started proselytizing [zsh][1], I gave it a shot. It didn't take long for me to appreciate it, and several years later, I strongly prefer it for many of the little things that it does.
|
||||
|
||||
I've been using zsh (provided via [Homebrew][2], not the system installed), and the [Oh My Zsh enhancement][3].
|
||||
|
||||
The examples in this article are for my personal `.zshrc`. Most will work directly in Bash, and I don't believe that any rely on Oh My Zsh, but your mileage may vary. There was a period when I was maintaining a shell dotfile for both zsh and Bash, but I did eventually give up on my `.bashrc`.
|
||||
|
||||
### We're all mad here
|
||||
|
||||
If you want the possibility of using the same dotfile across OS's, you'll want to give your dotfile a little smarts.
|
||||
```
|
||||
### Mac Specifics
|
||||
if [[ "$OSTYPE" == "darwin"* ]]; then
|
||||
# Mac-specific stuff here.
|
||||
fi
|
||||
```
|
||||
|
||||
For instance, I expect the Alt + arrow keys to move the cursor by the word rather than by a single space. To make this happen in [iTerm2][4] (my preferred shell), I add this snippet to the Mac-specific portion of my .zshrc:
|
||||
```
|
||||
### Mac Specifics
|
||||
if [[ "$OSTYPE" == "darwin"* ]]; then
|
||||
### Mac cursor commands for iTerm2; map ctrl+arrows or alt+arrows to fast-move
|
||||
bindkey -e
|
||||
bindkey '^[[1;9C' forward-word
|
||||
bindkey '^[[1;9D' backward-word
|
||||
bindkey '\e\e[D' backward-word
|
||||
bindkey '\e\e[C' forward-word
|
||||
fi
|
||||
```
|
||||
|
||||
### What about Bob?
|
||||
|
||||
While I came to love my shell dotfile, I didn't always want the same things available on my home machines as on my work machines. One way to solve this is to have supplementary dotfiles to use at home but not at work. Here's how I accomplished this:
|
||||
```
|
||||
if [[ `egrep 'dnssuffix1|dnssuffix2' /etc/resolv.conf` ]]; then
|
||||
if [ -e $HOME/.work ]
|
||||
source $HOME/.work
|
||||
else
|
||||
echo "This looks like a work machine, but I can't find the ~/.work file"
|
||||
fi
|
||||
fi
|
||||
```
|
||||
|
||||
In this case, I key off of my work dns suffix (or multiple suffixes, depending on your situation) and source a separate file that makes my life at work a little better.
|
||||
|
||||
### That thing you do
|
||||
|
||||
Now is probably a good time to quit using the tilde (`~`) to represent your home directory when writing scripts. You'll find that there are some contexts where it's not recognized. Getting in the habit of using the environment variable `$HOME` will save you a lot of troubleshooting time and headaches later on.
|
||||
|
||||
The logical extension would be to have OS-specific dotfiles to include if you are so inclined.
|
||||
|
||||
### Memory, all alone in the moonlight
|
||||
|
||||
I've written embarrassing amounts of shell, and I've come to the conclusion that I really don't want to write more. It's not that shell can't do what I need most of the time, but I find that if I'm writing shell, I'm probably slapping together a duct-tape solution rather than permanently solving the problem.
|
||||
|
||||
Likewise, I hate memorizing things, and throughout my career, I have had to do radical context shifting during the course of a day. The practical consequence is that I've had to re-learn many things several times over the years. ("Wait... which for-loop structure does this language use?")
|
||||
|
||||
So, every so often I decide that I'm tired of looking up how to do something again. One way that I improve my life is by adding aliases.
|
||||
|
||||
A common scenario for anyone who works with systems is finding out what's taking up all of the disk. Unfortunately, I have never been able to remember this incantation, so I made a shell alias, creatively called `bigdirs`:
|
||||
```
|
||||
alias bigdirs='du --max-depth=1 2> /dev/null | sort -n -r | head -n20'
|
||||
```
|
||||
|
||||
While I could be less lazy and actually memorize it, well, that's just not the Unix way...
|
||||
|
||||
### Typos, and the people who love them
|
||||
|
||||
Another way that using shell aliases improves my life is by saving me from typos. I don't know why, but I've developed this nasty habit of typing a `w` after the sequence `ea`, so if I want to clear my terminal, I'll often type `cleawr`. Unfortunately, that doesn't mean anything to my shell. Until I add this little piece of gold:
|
||||
```
|
||||
alias cleawr='clear'
|
||||
```
|
||||
|
||||
In one instance of Windows having an equivalent, but better, command, I find myself typing `cls`. It's frustrating to see your shell throw up its hands, so I add:
|
||||
```
|
||||
alias cls='clear'
|
||||
```
|
||||
|
||||
Yes, I'm aware of `ctrl + l`, but I never use it.
|
||||
|
||||
### Amuse yourself
|
||||
|
||||
Work can be stressful. Sometimes you just need to have a little fun. If your shell doesn't know the command that it clearly should just do, maybe you want to shrug your shoulders right back at it! You can do this with a function:
|
||||
```
|
||||
shrug() { echo "¯\_(ツ)_/¯"; }
|
||||
```
|
||||
|
||||
If that doesn't work, maybe you need to flip a table:
|
||||
```
|
||||
fliptable() { echo "（╯°□°）╯ ┻━┻"; } # Flip a table. Example usage: fsck -y /dev/sdb1 || fliptable
|
||||
```
|
||||
|
||||
Imagine my chagrin and frustration when I needed to flip a desk and I couldn't remember what I had called it. So I added some more shell aliases:
|
||||
```
|
||||
alias flipdesk='fliptable'
|
||||
alias deskflip='fliptable'
|
||||
alias tableflip='fliptable'
|
||||
```
|
||||
|
||||
And sometimes you need to celebrate:
|
||||
```
|
||||
disco() {
|
||||
echo "(•_•)"
|
||||
echo "<) )╯"
|
||||
echo " / \ "
|
||||
echo ""
|
||||
echo "\(•_•)"
|
||||
echo " ( (>"
|
||||
echo " / \ "
|
||||
echo ""
|
||||
echo " (•_•)"
|
||||
echo "<) )>"
|
||||
echo " / \ "
|
||||
}
|
||||
```
|
||||
|
||||
Typically, I'll pipe the output of these commands to `pbcopy `and paste it into the relevant chat tool I'm using.
|
||||
|
||||
I got this fun function from a Twitter account that I follow called "Command Line Magic:" [@climagic][5]. Since I live in Florida now, I'm very happy that this is the only snow in my life:
|
||||
```
|
||||
snow() {
|
||||
clear;while :;do echo $LINES $COLUMNS $(($RANDOM%$COLUMNS));sleep 0.1;done|gawk '{a[$3]=0;for(x in a) {o=a[x];a[x]=a[x]+1;printf "\033[%s;%sH ",o,x;printf "\033[%s;%sH*\033[0;0H",a[x],x;}}'
|
||||
}
|
||||
|
||||
```
|
||||
|
||||
### Fun with functions
|
||||
|
||||
We've seen some examples of functions that I use. Since few of these examples require an argument, they could be done as aliases. I use functions out of personal preference when it's more than a single short statement.
|
||||
|
||||
At various times in my career, I've run [Graphite][6], an open-source, scalable, time-series metrics solution. There have been enough instances where I needed to transpose a metric path (delineated with periods) to a filesystem path (delineated with slashes), or vice versa, that it became useful to have dedicated functions for these tasks:
|
||||
```
|
||||
# Useful for converting between Graphite metrics and file paths
|
||||
function dottoslash() {
|
||||
echo $1 | sed 's/\./\//g'
|
||||
}
|
||||
function slashtodot() {
|
||||
echo $1 | sed 's/\//\./g'
|
||||
}
|
||||
```
|
||||
|
||||
During another time in my career, I was running a lot of Kubernetes. If you aren't familiar with running Kubernetes, you need to write a lot of YAML. Unfortunately, it's not hard to write invalid YAML. Worse, Kubernetes doesn't validate YAML before trying to apply it, so you won't find out it's invalid until you apply it. Unless you validate it first:
|
||||
```
|
||||
function yamllint() {
|
||||
for i in $(find . -name '*.yml' -o -name '*.yaml'); do echo $i; ruby -e "require 'yaml';YAML.load_file(\"$i\")"; done
|
||||
}
|
||||
```
|
||||
|
||||
Because I got tired of embarrassing myself and occasionally breaking a customer's setup, I wrote this little snippet and added it as a pre-commit hook to all of my relevant repos. Something similar would be very helpful as part of your continuous integration process, especially if you're working as part of a team.
|
||||
|
||||
### Oh, fingers, where art thou?
|
||||
|
||||
I was once an excellent touch-typist. Those days are long gone. I typo more than I would have believed possible.
|
||||
|
||||
At different times, I have used a fair amount of either Chef or Kubernetes. Fortunately for me, I never used both at the same time.
|
||||
|
||||
Part of the Chef ecosystem is Test Kitchen, a suite of tools that facilitate testing, which is invoked with the commands `kitchen test`. Kubernetes is managed with a CLI tool `kubectl`. Both commands require several subcommands, and neither rolls off the fingers particularly fluidly.
|
||||
|
||||
Rather than create a bunch of "typo aliases," I aliased those commands to `k`:
|
||||
```
|
||||
alias k='kitchen test $@'
|
||||
```
|
||||
|
||||
or
|
||||
```
|
||||
alias k='kubectl $@'
|
||||
```
|
||||
|
||||
### Timesplitters
|
||||
|
||||
The last half of my career has involved writing more code with other people. I've worked in many environments where we have forked copies of repos on our account and use pull requests as part of the review process. When I want to make sure that my fork of a given repo is up to date with the parent, I use `fetchupstream`:
|
||||
```
|
||||
alias fetchupstream='git fetch upstream && git checkout master && git merge upstream/master && git push'
|
||||
```
|
||||
|
||||
### Mine eyes have seen the glory of the coming of color
|
||||
|
||||
I like color. It can make things like diffs easier to use.
|
||||
```
|
||||
alias diff='colordiff'
|
||||
```
|
||||
|
||||
I thought that colorized man pages was a neat trick, so I incorporated this function:
|
||||
```
|
||||
# Colorized man pages, from:
|
||||
# http://boredzo.org/blog/archives/2016-08-15/colorized-man-pages-understood-and-customized
|
||||
man() {
|
||||
env \
|
||||
LESS_TERMCAP_md=$(printf "\e[1;36m") \
|
||||
LESS_TERMCAP_me=$(printf "\e[0m") \
|
||||
LESS_TERMCAP_se=$(printf "\e[0m") \
|
||||
LESS_TERMCAP_so=$(printf "\e[1;44;33m") \
|
||||
LESS_TERMCAP_ue=$(printf "\e[0m") \
|
||||
LESS_TERMCAP_us=$(printf "\e[1;32m") \
|
||||
man "$@"
|
||||
}
|
||||
```
|
||||
|
||||
I love the command `which`. It simply tells you where in the filesystem the command you're running comes from—unless it's a shell function. After multiple cascading dotfiles, sometimes it's not clear where a function is defined or what it does. It turns out that the `whence` and `type` commands can help with that.
|
||||
```
|
||||
# Where is a function defined?
|
||||
whichfunc() {
|
||||
whence -v $1
|
||||
type -a $1
|
||||
}
|
||||
```
|
||||
|
||||
### Conclusion
|
||||
|
||||
I hope this article helps and inspires you to find ways to improve your daily shell-using experience. They don't need to be huge, novel, or complex. They might solve a minor but frequent bit of friction, create a shortcut, or even offer a solution to reducing common typos.
|
||||
|
||||
You're welcome to look through my [dotfiles repo][7], but I warn you that it could use a lot of cleaning up. Feel free to use anything that you find helpful, and please be excellent to one another.
|
||||
|
||||
--------------------------------------------------------------------------------
|
||||
|
||||
via: https://opensource.com/article/18/9/shell-dotfile
|
||||
|
||||
作者：[H.Waldo Grunenwald][a]
|
||||
选题：[lujun9972](https://github.com/lujun9972)
|
||||
译者：[译者ID](https://github.com/译者ID)
|
||||
校对：[校对者ID](https://github.com/校对者ID)
|
||||
|
||||
本文由 [LCTT](https://github.com/LCTT/TranslateProject) 原创编译，[Linux中国](https://linux.cn/) 荣誉推出
|
||||
|
||||
[a]: https://opensource.com/users/gwaldo
|
||||
[1]: http://www.zsh.org/
|
||||
[2]: https://brew.sh/
|
||||
[3]: https://github.com/robbyrussell/oh-my-zsh
|
||||
[4]: https://www.iterm2.com/
|
||||
[5]: https://twitter.com/climagic
|
||||
[6]: https://github.com/graphite-project/
|
||||
[7]: https://github.com/gwaldo/dotfiles
|
||||
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Reference in New Issue
Block a user