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135 lines
2.8 KiB
Markdown
15 个可以节省你时间的命令别名
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======
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> 在你安装的 Linux 发行版中默认就包含了一些别名。
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![](https://opensource.com/sites/default/files/styles/image-full-size/public/lead-images/computer_keyboard_laptop_development_blue.png?itok=IfckxN48)
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Linux 命令行别名非常适合帮助你提高工作效率。更好的是,在你安装的 Linux 发行版中默认就包含了一些别名。
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这是 Fedora 27 中的命令别名的示例:
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![](https://opensource.com/sites/default/files/uploads/default.png)
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这个 `alias` 命令列出了已有的别名。设置别名也十分简单:
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```
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alias new_name="command"
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```
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这里有 15 个命令行别名,可以节省你的时间:
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1、安装任何应用实用 / 应用程序:
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```
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alias install="sudo yum install -y"
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```
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在这里,根据每个用户的偏好,`sudo` 和 `-y` 是可选的:
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![install alias.png][2]
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2、更新系统:
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```
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alias update="sudo yum update -y"
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```
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3、升级系统:
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```
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alias upgrade="sudo yum upgrade -y"
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```
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4、切换 root 用户:
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```
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alias root="sudo su -"
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```
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5、切换到 “user” 用户, 其中 `user` 设置为你的用户名:
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```
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alias user="su user"
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```
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6、显示列出所有可用端口、状态还有 IP:
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```
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alias myip="ip -br -c a"
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```
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7、`ssh` 到你的服务器 `myserver`:
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```
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alias myserver="ssh user@my_server_ip”
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```
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8、列出系统中所有进程:
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```
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alias process="ps -aux"
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```
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9、检查系统的服务状态:
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```
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alias sstatus="sudo systemctl status"
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```
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10、重启系统服务:
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```
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alias srestart="sudo systemctl restart"
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```
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11、按名称杀死进程:
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```
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alias kill="sudo pkill"
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```
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![kill process alias.png][4]
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12、显示系统系统总使用内存和空闲内存 :
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```
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alias mem="free -h"
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```
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13、显示系统 CPU 框架结构、CPU 数量、线程数等:
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```
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alias cpu="lscpu"
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```
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14、显示系统总磁盘大小:
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```
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alias disk="df -h"
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```
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15、显示当前系统 Linux 发行版本(适用于 CentOS、Fedora 和 Red Hat):
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```
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alias os="cat /etc/redhat-release"
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```
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![system_details alias.png][6]
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--------------------------------------------------------------------------------
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via: https://opensource.com/article/18/8/time-saving-command-line-aliases
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作者:[Aarchit Modi][a]
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选题:[lujun9972](https://github.com/lujun9972)
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译者:[MZqk](https://github.com/MZqk)
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校对:[wxy](https://github.com/wxy)
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本文由 [LCTT](https://github.com/LCTT/TranslateProject) 原创编译,[Linux 中国](https://linux.cn/) 荣誉推出
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[a]:https://opensource.com/users/architmodi
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[2]:https://opensource.com/sites/default/files/uploads/install.png (install alias.png)
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[4]:https://opensource.com/sites/default/files/uploads/kill.png (kill process alias.png)
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[6]:https://opensource.com/sites/default/files/uploads/system_details.png (system_details alias.png)
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