Common directory and path related commands in linux
- 2020-05-30 21:56:09
Common directory and path commands in linux
Relative path and absolute path
Absolute path: path learning method 1 must start from the root directory/write. Such as/user share/doc.
Relative path: the directory does not start/write. If you want to switch from /user/share/doc to /user/share/man, you can write "cd.. /man "is the right way to write it.
Directory related operations
.represents this layer directory
. Represents the upper level directory
- represents the previous working directory
~ represents the home folder of the current user
~user1 represents the user's home folder, user1
Common process directory commands:
cd: switch directories
pwd: displays the current directory
mkdir: create a new directory
rmdir: delete an empty directory
pwd - p 】 【
-P shows the current path instead of using the connection path
mkdir [-mp] directory
-m: permissions for configuration files. Set it directly.
-p: helps you create the directory you need recursively.
rmdir [-p] directory
-p: delete 1 with the upper "empty" directory.
Variable about the path of the executable: $PATH
Execute "echo$PATH" to see which directories are defined
root user under execution
[root@iZwz99w26fq15zuqbxgeltZ ~]# echo$PATH -bash: echo/usr/local/sbin:/usr/local/bin:/usr/sbin:/usr/bin:/root/bin: No such file or directory
Execute under normal user
[user1@iZwz99w26fq15zuqbxgeltZ ~]$ echo$PATH -bash:echo/usr/local/bin:/usr/bin:/usr/local/sbin:/usr/sbin:/home/user1/.local/bin:/home/user1/bin: No such file or directory
The contents of the PATH variable are separated by a heap of directories separated by (:), and the directory /bin is available to any user anywhere under the command /bin/ls.
The Linux directory and the path of the common command content sorted out above hope to help you!