选题: 15 command-line aliases to save you time

sources/talk/20180828 15 command-line aliases to save you time.md

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+15 command-line aliases to save you time
+======
+
+![](https://opensource.com/sites/default/files/styles/image-full-size/public/lead-images/computer_keyboard_laptop_development_blue.png?itok=IfckxN48)
+
+Linux command-line aliases are great for helping you work more efficiently. Better still, some are included by default in your installed Linux distro.
+
+This is an example of a command-line alias in Fedora 27:
+
+![](https://opensource.com/sites/default/files/uploads/default.png)
+
+The command `alias` shows the list of existing aliases. Setting an alias is as simple as typing:
+
+`alias new_name="command"`
+
+Here are 15 command-line aliases that will save you time:
+
+1. To install any utility/application:
+
+`alias install="sudo yum install -y"`
+
+Here, `sudo` and `-y` are optional as per user’s preferences:
+
+
+![install alias.png][2]
+
+2. To update the system:
+
+`alias update="sudo yum update -y"`
+
+3. To upgrade the system:
+
+`alias upgrade="sudo yum upgrade -y"`
+
+4. To change to the root user:
+
+`alias root="sudo su -"`
+
+5. To change to "user," where "user" is set as your username:
+
+`alias user="su user"`
+
+6. To display the list of all available ports, their status, and IP:
+
+`alias myip="ip -br -c a"`
+
+7. To `ssh` to the server `myserver`:
+
+`alias myserver="ssh user@my_server_ip”`
+
+8. To list all processes in the system:
+
+`alias process="ps -aux"`
+
+9. To check the status of any system service:
+
+`alias sstatus="sudo systemctl status"`
+
+10. To restart any system service:
+
+`alias srestart="sudo systemctl restart"`
+
+11. To kill any process by its name:
+
+`alias kill="sudo pkill"`
+
+![kill process alias.png][4]
+
+12. To display the total used and free memory of the system:
+
+`alias mem="free -h"`
+
+13. To display the CPU architecture, number of CPUs, threads, etc. of the system:
+
+`alias cpu="lscpu"`
+
+14. To display the total disk size of the system:
+
+`alias disk="df -h"`
+
+15. To display the current system Linux distro (for CentOS, Fedora, and Red Hat):
+
+`alias os="cat /etc/redhat-release"`
+
+![system_details alias.png][6]
+
+
+
+
+--------------------------------------------------------------------------------
+
+via: https://opensource.com/article/18/8/time-saving-command-line-aliases
+
+作者：[Aarchit Modi][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/architmodi
+[2]:https://opensource.com/sites/default/files/uploads/install.png (install alias.png)
+[4]:https://opensource.com/sites/default/files/uploads/kill.png (kill process alias.png)
+[6]:https://opensource.com/sites/default/files/uploads/system_details.png (system_details alias.png)