- ls: list
- cd: change directory
- su: switch user
- pwd: print work directory
- ps: process status
- lsof: list open file
- df: disk free
- du: disk usage
- rm: remove
- cat: concatenate
- ln: link
- man: manual
- touch: touch (用于修改文件时间属性)
- uname: unix name
- mv: move
- cp: copy
- nohup: no hang up
- fg: foreground (将后台命令放到前台执行)
- bg: background (将前台命令放到后台执行)
- chown: change owner
- chgrp: change group
- chmod: change mode
- mkfs: make file system
- fsck: file system check
- insmod: install modules
- lsmod: list modules
- dir: directory (同ls, 兼容的dos命令)
- rmdir: remove directory
- rpm: redhat package manager
- apt: advanced package tool
- dirname: directory name
用于输出文件的目录, 即使该文件和目录不存在
- basename: base name
用于输出文件的名称, 即使该文件和目录不存在