grep命令参数-显示查询内容的所在行号

 grep -n ls ~/.bashrc
1:
47: else
54:else
77:# enable color support of ls and also add handy aliases
80: alias ls='ls --color=auto'
81: alias ll='ls -la'
90:# some more ls aliases
91:#alias ll='ls -l'
92:#alias la='ls -A'
93:#alias l='ls -CF'