linux每日命令(2):cd命令
程序员文章站
2022-08-17 17:23:17
1.命令格式: cd [目录名] 2.命令功能 切换当前目录至 [目录名] 3. 常用范例 1.进入系统根目录 命令: cd / 说明:进入系统根目录,上面命令执行完后拿ls命令看一下,当前目录已经到系统根目录了 输出: pwd的作用是查询当前所在目录 2. 返回父级目录 命令: cd .. 输出: ......
1.命令格式:
cd [目录名]
2.命令功能
切换当前目录至 [目录名]
3. 常用范例
1.进入系统根目录
命令:
cd /
说明:进入系统根目录,上面命令执行完后拿ls命令看一下,当前目录已经到系统根目录了
输出:
hc@hc-virtual-machine:~$ pwd /home/hc hc@hc-virtual-machine:~$ cd / hc@hc-virtual-machine:/$ ls bin dev initrd.img lib64 mnt root snap sys var boot etc initrd.img.old lost+found opt run srv tmp vmlinuz cdrom home lib media proc sbin swapfile usr
pwd的作用是查询当前所在目录
2. 返回父级目录
命令:
cd ..
输出:
hc@hc-virtual-machine:~/pycharmprojects$ pwd /home/hc/pycharmprojects hc@hc-virtual-machine:~/pycharmprojects$ cd .. hc@hc-virtual-machine:~$ pwd /home/hc
3.进入当前目录的父目录的父目录
命令:
cd ../..
输出:
hc@hc-virtual-machine:~/pycharmprojects$ pwd /home/hc/pycharmprojects hc@hc-virtual-machine:~/pycharmprojects$ cd ../.. hc@hc-virtual-machine:/home$ pwd /home
4. 进入当前用户主目录
“当前用户主目录”和“系统根目录”是两个不同的概念。进入当前用户主目录有两个方法。
命令1:
cd
直接输入cd,然后回车
输出:
hc@hc-virtual-machine:~/pycharmprojects/my_test$ pwd /home/hc/pycharmprojects/my_test hc@hc-virtual-machine:~/pycharmprojects/my_test$ cd hc@hc-virtual-machine:~$ pwd /home/hc
上面的命令是我在非root用户下操作的,现在我切换到root用户下再操作一遍
hc@hc-virtual-machine:~/pycharmprojects/my_test$ sudo su root@hc-virtual-machine:/home/hc/pycharmprojects/my_test# pwd /home/hc/pycharmprojects/my_test root@hc-virtual-machine:/home/hc/pycharmprojects/my_test# cd root@hc-virtual-machine:~# pwd /root
命令2:
cd ~
输出
hc@hc-virtual-machine:~/pycharmprojects/my_test$ pwd /home/hc/pycharmprojects/my_test hc@hc-virtual-machine:~/pycharmprojects/my_test$ cd ~ hc@hc-virtual-machine:~$ pwd /home/hc
5. 跳转到指定目录
命令
cd /home/hc/pycharmprojects/my_test/
输出
hc@hc-virtual-machine:/$ pwd / hc@hc-virtual-machine:/$ cd /home/hc/pycharmprojects/my_test/ hc@hc-virtual-machine:~/pycharmprojects/my_test$ pwd /home/hc/pycharmprojects/my_test
6.返回进入此目录之前所在的目录
命令:
cd -
说明:自动跳转到进入此目录之前所在的目录,并输出所在目录名称
输出:
hc@hc-virtual-machine:/$ pwd / hc@hc-virtual-machine:/$ cd /home/hc/pycharmprojects/my_test/ hc@hc-virtual-machine:~/pycharmprojects/my_test$ pwd /home/hc/pycharmprojects/my_test hc@hc-virtual-machine:~/pycharmprojects/my_test$ cd - / hc@hc-virtual-machine:/$ pwd /
7. 把上个命令的参数作为cd参数使用
命令:
cd !$
输出:
hc@hc-virtual-machine:~/pycharmprojects/my_test$ pwd /home/hc/pycharmprojects/my_test hc@hc-virtual-machine:~/pycharmprojects/my_test$ ls /opt/ google hc@hc-virtual-machine:~/pycharmprojects/my_test$ cd !$ cd /opt/ hc@hc-virtual-machine:/opt$ pwd /opt
上一篇: iOS - 自定义 UITabBar
下一篇: 阿里云服务器配置免费https服务