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[Dongshuaike translating]
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7 Interesting Linux ‘sort’ Command Examples – Part 2
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================================================================================
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In our last article we have covered various examples on sort command, if you’ve missed, you can go through it using below link. In continuation to the last post this post aims at covering remaining of sort command so that both the article together serves as complete guide to Linux ‘sort‘ command.
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注：前两天做过这个原文
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- [14 ‘sort’ Command Examples in Linux][1]
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Before we continue further, create a text file ‘month.txt‘ and populate it with the data as given below.
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$ echo -e "mar\ndec\noct\nsep\nfeb\naug" > month.txt
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$ cat month.txt
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### 15. Sort the file ‘month.txt‘ on the basis of month order by using switch ‘M‘ (–month-sort). ###
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$ sort -M month.txt
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**Important**: Note that ‘sort‘ command needs at least 3 characters to consider month name.
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### 16. Sort the data that is in human readable format say 1K, 2M, 3G, 2T, where K,M,G,T represents Kilo, Mega, Giga, Tera. ###
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$ ls -l /home/$USER | sort -h -k5
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### 17. In the last article we have created a file ‘sorted.txt‘ in example number 4 and another text file ‘lsl.txt‘ in example number 6. We know ‘sorted.txt‘ is already sorted while ‘lsl.txt‘ is not. Lets check both the files are sorted or not using sort command. ###
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$ sort -c sorted.txt
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If it returns 0, means that the file is sorted and there is no conflict.
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$ sort -c lsl.txt
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Reports Disorder. Conflict..
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### 18. If the delimiter (separator) between words are space, sort command automatically interpret anything after horizontal space as new word. What if the delimiter is not space? ###
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Consider a text file, the contents of which are separated by anything other than space such as ‘|’ or ‘\’ or ‘+’ or ‘.’ or….
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Create a text file where contents are separated by +. Use ‘cat‘ to check the contents of file.
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$ echo -e "21+linux+server+production\n11+debian+RedHat+CentOS\n131+Apache+Mysql+PHP\n7+Shell Scripting+python+perl\n111+postfix+exim+sendmail" > delimiter.txt
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----------
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$ cat delimiter.txt
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Now sort this file on the basis of 1st field which is numerical.
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$ sort -t '+' -nk1 delimiter.txt
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And second on the basis of 4th field which is non numeric.
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If the delimiter is Tab you may use $’\t’ in place of ‘+’, as shown in the above example.
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### 19. Sort the contents of ‘ls -l‘ command for your home directory on the basis of 5th column which represents the ‘amount of data‘ in Random order. ###
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$ ls -l /home/avi/ | sort -k5 -R
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Every time you run the above piece of script you are likely to get a different result since the result is generated randomly.
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As clear from the Rule number – 2 from the last article, sort command prefer line starting with lowercase characters over uppercase characters. Also check example 3 in last article, where string ‘laptop‘ appears before string ‘LAPTOP‘.
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### 20. How to override the default sorting preference? before we are able to override the default sorting preference we need to export the environment variable LC_ALL to c. To do this run the below code on your Command Line Prompt. ###
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$ export LC_ALL=C
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And then sort the text file ‘tecmint.txt‘ overriding the default sort preference.
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$ sort tecmint.txt
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Override Sorting Preferences
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Don’t forget to compare the output with the one you achieved in example 3 and also you can use option ‘-f‘ aka ‘–ignore-case‘ to get much organized output.
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$ sort -f tecmint.txt
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### 21. How about running ‘sort‘ on two input files and join them in one go! ###
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Lets create two text file namely ‘file1.txt‘ and ‘file2.txt‘ and populate it with some data. Here we are populating ‘file1.txt‘ with numbers as below. Also used ‘cat‘ command to check the content of file.
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$ echo -e “5 Reliable\n2 Fast\n3 Secure\n1 open-source\n4 customizable” > file1.txt
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$ cat file1.txt
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And populate second file ‘file2.txt‘ with some data as.
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$ echo -e “3 RedHat\n1 Debian\n5 Ubuntu\n2 Kali\n4 Fedora” > file2.txt
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$ cat file2.txt
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Now sort and join the output of both the files.
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$ join <(sort -n file1.txt) <(sort file2.txt)
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That’s all for now. Keep Connected. Keep to Tecmint. Please Provide us with your valuable feedback in the comments below.
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--------------------------------------------------------------------------------
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via: http://www.tecmint.com/linux-sort-command-examples/
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作者：[Avishek Kumar][a]
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译者：[译者ID](https://github.com/译者ID)
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校对：[校对者ID](https://github.com/校对者ID)
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本文由 [LCTT](https://github.com/LCTT/TranslateProject) 原创翻译，[Linux中国](http://linux.cn/) 荣誉推出
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[a]:http://www.tecmint.com/author/avishek/
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[1]:http://www.tecmint.com/sort-command-linux/
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@ -0,0 +1,131 @@
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Linux 'sort'命令的七个有趣实例-第二部分
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================================================================================
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在上一篇文章里，我们已经探讨了关于sort命令的多个例子，如果你错过了这篇文章，可以点击下面的链接进行阅读。今天的这篇文章作为上一篇文章的继续，将讨论关于sort命令的剩余用法，与上一篇一起作为Linux ‘sort’命令的完整指南。
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注：前两天做过这个原文
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- [14 ‘sort’ Command Examples in Linux][1]
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-
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在我们继续深入之前，先创建一个文本文档‘month.txt’，并且将上一次给出的数据填进去。
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$ echo -e "mar\ndec\noct\nsep\nfeb\naug" > month.txt
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$ cat month.txt
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### 15. 通过使用’M‘选项，对’month.txt‘文件按照月份顺序进行排序。###
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$ sort -M month.txt
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**注意**:‘sort’命令需要至少3个字符来确认月份名称。
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### 16. 把数据整理成方便人们阅读的形式，比如1K、2M、3G、2T，这里面的K、G、M、T代表千、兆、吉、梯。
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（译者注：好像这个选项并不是所有Linu版本都有，而且也没有实现按KMGT显示。）
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$ ls -l /home/$USER | sort -h -k5
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### 17. 在上一篇文章中，我们在例子4中创建了一个名为‘sorted.txt’的文件，在例子6中创建了一个‘lsl.txt’。‘sorted.txt'已经排好序了而’lsl.txt‘还没有。让我们使用sort命令来检查两个文件是否已经排好序。###
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$ sort -c sorted.txt
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如果它返回0，则表示文件已经排好序。
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$ sort -c lsl.txt
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Reports Disorder. Conflict..
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报告无序。存在矛盾……
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### 18. 如果文字之间的分隔符是空格，sort命令自动地将横向空格后的东西当做一个新文字单元，如果分隔符不是空格呢？###
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考虑这样一个文本文件，里面的内容可以由除了空格之外的任何符号分隔，比如‘|’，‘\’，‘+’，‘.’等……
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创建一个分隔符为+的文本文件。使用‘cat‘命令查看文件内容。
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$ echo -e "21+linux+server+production\n11+debian+RedHat+CentOS\n131+Apache+Mysql+PHP\n7+Shell Scripting+python+perl\n111+postfix+exim+sendmail" > delimiter.txt
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----------
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$ cat delimiter.txt
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现在基于由数字组成的第一个域来进行排序。
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$ sort -t '+' -nk1 delimiter.txt
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然后再基于非数字的第四个域排序。
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如果分隔符是Tab，你需要在’+‘的位置上用$’\t’代替，如上例所示。
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### 19. 对主用户目录下使用‘ls -l’命令得到的结果基于第五列——‘数据的大小’进行一个乱序排列。
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$ ls -l /home/avi/ | sort -k5 -R
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每一次你运行上面的脚本，你得到结果可能都不一样，因为结果是随机生成的。
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正如我在上一篇文章中提到的规则2所说——相比于大写字母，sort命令更喜欢以小写字母开始的行。看一下上一篇文章的例3，字符串‘laptop’在‘LAPTOP’前出现。
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### 20. 如何覆盖默认的排序优先权？在这之前我们需要先将环境变量LC_ALL的值设置为C。在命令行提示栏中运行下面的代码。###
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$ export LC_ALL=C
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然后以重写默认优先权的方式对‘tecmint.txt’文件重新排序。
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$ sort tecmint.txt
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重写排序优先权
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不要忘记与example 3中得到的输出结果做比较，并且你可以使用‘-f’选项，又叫‘-ignore-case’来获取非常有序的输出。
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$ sort -f tecmint.txt
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### 21. 给两个输入文件进行‘sort‘，然后一口气把它们连接起来怎么样？###
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我们创建两个文本文档’file1.txt‘以及’file2.txt‘，并用数据填充，如下所示，并用’cat‘命令查看文件的内容。
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$ echo -e “5 Reliable\n2 Fast\n3 Secure\n1 open-source\n4 customizable” > file1.txt
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$ cat file1.txt
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用如下数据填充’file2.txt‘。
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$ echo -e “3 RedHat\n1 Debian\n5 Ubuntu\n2 Kali\n4 Fedora” > file2.txt
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$ cat file2.txt
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现在我们对两个文件进行排序并连接。
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$ join <(sort -n file1.txt) <(sort file2.txt)
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我所要讲的全部内容就在这里了，希望与各位保持联系，也希望各位经常来Tecmint逛逛。有反馈就在下面评论吧。
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--------------------------------------------------------------------------------
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via: http://www.tecmint.com/linux-sort-command-examples/
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作者：[Avishek Kumar][a]
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译者：[译者ID](https://github.com/DongShuaike)
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校对：[校对者ID](https://github.com/校对者ID)
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本文由 [LCTT](https://github.com/LCTT/TranslateProject) 原创翻译，[Linux中国](http://linux.cn/) 荣誉推出
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[a]:http://www.tecmint.com/author/avishek/
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[1]:http://www.tecmint.com/sort-command-linux/
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