linux 命令笔记

 

rm 

 -f, --force           ignore nonexistent files, never prompt //全不提示

  -i, --interactive     prompt before any removal //移除文件之前提示

      --no-preserve-root do not treat `/' specially (the default)

      --preserve-root   fail to operate recursively on `/'

  -r, -R, --recursive   remove directories and their contents recursively //递归移除

  -v, --verbose         explain what is being done //显示全部信息

      --help     display this help and exit

      --version  output version information and exit

查看 /etc/aa 文件内容
more /etc/aa
cat /etc/aa

cat /etc/passwd  //查找用户

编辑可以用vi vim(加强版，有颜色标识)