Alias settings in linux

Set the alias in linux-general Linux technology-Linux technology and application information. For details, refer to the following section. I recently learned about linux operations and found some methods to simplify the operations. For example, I can use some common commands as a brief alias.

Alias tomcat = "cd/usr/local/tomcat", but after exiting the system, these aliases become invalid. How to Write aliases to the configuration file:

First, find the user's folder to log on to. For example, when the ROOT user logs on to the/directory, go to the ROOT directory to edit the. bash_profile file.

For example, you can edit it like this (the alias lines are added). Of course, the system environment variables can also be written here.

#. Bash_profile

# Get the aliases and functions
If [-f ~ /. Bashrc]; then
.~ /. Bashrc
Fi
Alias tomcat = "cd/usr/local/tomcat"
Alias myip = "/sbin/ifconfig | grep-a 'inputadd' | sed-E'/127 \\. 0 \\. 0 \\. 1/d; s /. * inet addr :\\ ([0-9 \.] \\+ \\). */\ 1 /'"
# User specific environment and startup programs

PATH = $ PATH: $ HOME/bin

Export PATH
Unset USERNAME

Command that takes effect immediately after editing the. bash_profile File
Source. bash_profile

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