Linux ls command

Ls

Displays a list of directory contents, and the output information can be highlighted in color highlighting to partition different types of files.

Grammar:

Touch [ options ] [ parameters ]

options	explanation	example
-a--all	Displays all files, including ".	Ls–a/ show All files under the root
-l	long format display	Ls–l Show file properties
-h	with 1024
-d	show current directory	ls–d/tmp
-t	sorted by modified time, default from near to far	Ls–t/
-R	reverse, often with -t use	Ls–tr/
-C	fit -lt according to CTime (File access time Access)
-G	does not list any information about the group
-F	directory plus identity	(different files and different identities)
-P	directory plus identity	add to directory only /

Instance:

[[email protected] test]# ls–a # Show all, including hidden files .  .. Dir1 dir2 dir3 file1 file2 file3 [[email protected] test]# ls-l/ll # long format display Total 12 Drwxr-xr-x 2 root root 4096 Mar 14:23 Dir1 Drwxr-xr-x 2 root root 4096 Mar 14:23 Dir2 [[email protected] test]# ll–h # Show file size in K,M,G Total 12K Drwxr-xr-x 2 root root 4.0K Mar 14:23 dir1 Drwxr-xr-x 2 root root 4.0K Mar 14:23 Dir2 [[email protected] test]# touch-m file1-d "20180311" # Modify Change Time [[email protected] test]# touch-m file2-d "20180312" # Modify Change Time [[email protected] test]# ll–t # According to the modified time to sort, from near to far, by default is modified by the time Total 0 -rw-r--r--1 root root 0 Mar 00:00 file2 -rw-r--r--1 root root 0 Mar 00:00 file1 [[email protected] test]# ll–tr #-r reverse, usually with a- t use Total 0 -rw-r--r--1 root root 0 Mar 00:00 file1 -rw-r--r--1 root root 0 Mar 00:00 file2 [[email protected] test]# ll-d/test/ # Show only the properties of the current file or directory Drwxr-xr-x 6 root root 4096 Mar 14:42/test/ [[email protected] test]# touch-a file2-d "20180313" # Modify Access Time [[email protected] test]# touch-a file1-d "20180314" # Modify Access Time [[email protected] test]# LL-TC # sorted by file access time Total 0 -rw-r--r--1 root root 0 Mar 14:47 file1 -rw-r--r--1 root root 0 Mar 14:47 file2 [email protected] test]# stat file2 View Status File: ' File2 ' size:0 blocks:0 IO block:4096 Regular empty file device:fd00h/64768d inode:521236 links:1 Access: (0644/-rw-r--r--) Uid: (0/root) Gid: (0/root) ACCESS:2018-03-13 00:00:00.000000000-0400 Modify:2018-03-12 00:00:00.000000000-0400 Change:2018-03-19 14:47:13.681005838-0400 [Email protected] test]# stat file1 File: ' File1 ' size:0 blocks:0 IO block:4096 Regular empty file device:fd00h/64768d inode:521234 links:1 Access: (0644/-rw-r--r--) Uid: (0/root) Gid: (0/root) Access:2018-03-14 00:00:00.000000000-0400 Modify:2018-03-11 00:00:00.000000000-0500 Change:2018-03-19 14:47:19.547994463-0400

[[email protected] test]# ll-d/test/ # Show only the properties of the current directory Drwxr-xr-x 6 root root 4096 Mar 14:42/test/

[[email protected] test]# ll-gd/test/ # does not display the information of the genus Group Drwxr-xr-x 6 root 4096 Mar 14:42/test/

Long format Display Description:

-rw-r-r--. 1 root root 0 Mar 16:18 1.sh First: Represents the type of the file,- represents the file, D represents the directory,l represents the linked file, back 9 bits: Each 3 bits represent, belong to the master, belong to the group, other people's rights,R Read,w Write,x Execute, respectively represent 421 1: The delegates were linked several times Root: Owner Root: belong to group 0 : Represent size, unit bits Mar 16:18 represents the last modified time [[email protected] test] #ls--color=auto # with color display [[email protected] test]# ls-f # Add a logo to the directory (different files may be added differently) Dir1/dir2/dir3/file file1 file2 file3 test/ [[email protected] test]# ls–p # Add "/" to the directory only Dir1/dir2/dir3/file file1 file2 file3 test/

Linux ls command