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The alias cmd list your current aliases. For example :
alias
Use alias to shorten a long cmd in current shell session:
alias [name=[‘command‘]]
Use unalias to remove the alias , or use "\"(back-slash) before command to disable alias.
Your ~/.bashrc file might look like:
alias cp=‘cp ?vi‘ #to prompt when copying if you want to overwrite and will tell you where alias rm=‘rm ?i‘ #Prompts you if you really want to remove it. alias mv=‘mv ?i‘ #Prompts you if you are going to overwrite something
System-wide aliases can be put in the /etc/bashrc
If you are already in one shell session and you want to apply the new .bashrc immediately :
source ~/.bashrc
Examples:
1. Simplify pathing
alias ..=‘cd ..‘ alias ...=‘cd ../../‘ alias ....=‘cd ../../../‘ alias .....=‘cd ../../../../‘
2. Call multiple cmds
alias pl=‘pwd; ls‘
3. Call other aliases
alias p="pwd" alias l="ls -la" alias l="p; l"
4. Creating two separate aliases simultaneously
alias p="pwd"; l="ls -al"
5. Remove all aliases
unalias -a
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原文地址:http://www.cnblogs.com/moong/p/5904566.html