1.命令功能
cd :切换当前工作目录
2.命令格式
cd [目录名称或目录路径]
3.命令实例
例子1:切换根目录
[[email protected] ~]# pwd
/root
[[email protected] ~]# cd /
[[email protected] /]# pwd
/
例子2:切换上一级目录
[[email protected] ~]# pwd
/root
[[email protected] ~]# cd ..
[[email protected] /]# pwd
/
例子3:切换到宿主目录:[~]可省略
[[email protected] ~]# cd /etc/init.d/
[[email protected] init.d]# pwd
/etc/init.d
[[email protected] init.d]# cd ~
[[email protected] ~]# pwd
/root
例子4:切换到指定目录
[[email protected] ~]# pwd
/root
[[email protected] ~]# cd /etc/init.d/
[r[email protected] init.d]# pwd
/etc/init.d
[[email protected] init.d]# cd /dev/
[[email protected] dev]# pwd
/dev
例子5:切换至切换之前的目录
[[email protected] ~]# cd /etc/
[[email protected] etc]# pwd
/etc
[[email protected] etc]# cd /dev/
[[email protected] dev]# pwd
/dev
[[email protected] dev]# cd -
/etc
[[email protected] etc]# pwd
/etc
[[email protected] etc]# cd -
/dev
[[email protected] dev]# pwd
/dev