Simple operation under LINUX system--View file and directory attributes

ls: List directory contents (the default is the current working directory)

Format: command [options] [parameters]

Options:

-a: List all files and directories (including hidden files and directories)

-l: List in long format

-d: List only the directory itself

-h: Used with the -l option to display the file size in a friendly way (if -h is not added, the default file size is displayed in bytes);

Example:

[root@uni test]# ls
dir file file1
[root@uni test]# ls -l
Total usage 10248
drwxr-xr-x 2 root root 4096 July 16 15:30 dir
-rw-r--r-- 1 root root 7 July 16 15:30 file
-rw-r-- r-- 1 root root 10485760 July 16 15:32 file1
[root@uni test]# ls -lh
Total usage 11M
drwxr-xr-x 2 root root 4.0K July 16 15:30 dir
-rw-r--r-- 1 root root 7 July 16 15:30 file
-rw-r--r-- 1 root root 10M July 16 15:32 file1
[root@uni test]# ls -alh
Total usage 11M
drwxr-xr-x 3 root root 4.0K July 16 15:32 .
drwxr-xr-x. 3 root root 4.0K July 16 14:04 ..
drwxr-xr-x 2 root root 4.0K July 16 15:30 dir
-rw-r- -r-- 1 root root 7 July 16 15:30 file
-rw-r--r-- 1 root root 10M July 16 15:32 file1
[root@uni test] #ls -ldh
drwxr-xr-x 3 root root 4.0K July 16 15:32 .

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