ls Command--linux command application large dictionary 729 interpretation of commands

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ls command

with the LS command, all subdirectories and file information will be listed for the directory, and the file name and other information requested will be exported.
command syntax:

ls [ options ] [ directory | File ]

The meanings of the options in the command are as shown in the table.

table ls command option meaning

Options	Meaning
-A	Displays all subdirectories and files in the specified directory, including hidden files
-A	displays all subdirectories and files under the specified directory, including hidden files, but does not list "." and ".."
-C	mate -lt: Sort by CTime and show CTime
-D	If the parameter is a directory, only its name is displayed and the files and subdirectories below it are not displayed
-F	Show file types
-I.	Displays the Inode number of the file in the first column of the output
-L	To display the details of a file in a long format
-R	Preserve order when sorting
-T	Sort by modified time
-S	Display the size of each file allocation in blocks
-S	Sort by file size

Example: Displays simple information about files and subdirectories in the directory/var.

[[Email protected]~]# Ls/var

Account Crash db Games lib lock mail opt run TMP YP

Cache CVS empty GDM local log NIS preserve spool www

Example: Displays details of all files and subdirectories in the/root directory, including hidden files.

[[Email protected]~]# ls-al/root

Total dosage 216

Dr-xr-x---. root root 4096 8 months 19 01:17.

dr-xr-xr-x.25 root root 4096 8 months 19 00:58..

-rw-r--r--. 2 root root 6 8 months 01:17 a

Drwxr-xr-x. 2 root root 4096 8 months 00:47. ABRT

-RW-------. 1 root root 1577 8 months 21:46 anaconda-ks.cfg

-rw-r--r--. 2 root root 6 8 months 01:17 b

-rw-r--r--. 1 root root 5 months . bash_logout

-rw-r--r--. 1 root root 176 5 months . bash_profile

-rw-r--r--. 1 root root 176 9 months 2004. BASHRC

Drwxr-xr-x. 3 root root 4096 8 months 00:47. Cache

DRWX------. 5 root root 4096 8 month 00:47. config

-rw-r--r--. 1 root root 9 months 2004. CSHRC

DRWX------. 3 root root 4096 8 months 00:47. Dbus

........................ ( omitted )

The file name is preceded by "." is the hidden file.

Example: Show file and subdirectory information in/etc directory, mark file type with tags.

[Email protected]~]# ls-f/etc

Example: Sort the files and subdirectories in the/root directory with the last access time of the file (last time in front) .

[Email protected] ~]# Ls-lt/root

Total dosage 100

Drwxr-xr-x. 2 root root 4096 8 months 00:47 public

Drwxr-xr-x. 2 root root 4096 8 months 00:47 template

Drwxr-xr-x. 2 root root 4096 8 month 00:47 video

Drwxr-xr-x. 2 root root 4096 8 months 00:47 's photos

Drwxr-xr-x. 2 root root 4096 8 months 00:47 documentation

Drwxr-xr-x. 2 root root 4096 8 months 00:47 Download

Drwxr-xr-x. 2 root root 4096 8 months 00:47 Music

Drwxr-xr-x. 2 root root 4096 8 months 00:47 Desktop

-RW-------. 1 root root 1577 8 months 21:46 anaconda-ks.cfg

-rw-r--r--. 1 root root 45641 8 months 21:46 install.log

-rw-r--r--. 1 root root 10033 8 months 21:41 install.log.syslog

Example: sort files and subdirectories in the/root directory at the size of the file.

[Email protected] ~]# Ls-sl/root

Total dosage 100

-rw-r--r--. 1 root root 45641 8 months 21:46 install.log

-rw-r--r--. 1 root root 10033 8 months 21:41 install.log.syslog

Drwxr-xr-x. 2 root root 4096 8 months 00:47 public

Drwxr-xr-x. 2 root root 4096 8 months 00:47 template

Drwxr-xr-x. 2 root root 4096 8 month 00:47 video

Drwxr-xr-x. 2 root root 4096 8 months 00:47 's photos

Drwxr-xr-x. 2 root root 4096 8 months 00:47 documentation

Drwxr-xr-x. 2 root root 4096 8 months 00:47 Download

Drwxr-xr-x. 2 root root 4096 8 months 00:47 Music

Drwxr-xr-x. 2 root root 4096 8 months 00:47 Desktop

-RW-------. 1 root root 1577 8 months 21:46 anaconda-ks.cfg

Example : View the inode for the/root/install.log file .

[Email protected]~]# ls-i/root/install.log

6029314/root/install.log

Example : View /root/install.log file disk usage.

[Email protected]~]# ls-s/root/install.log

52/root/install.log

file /root/install.log disk footprint is 52KB

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ls Command--linux command application large dictionary 729 interpretation of commands