Linux Learning Note: ls command

The LS command is the most commonly used command to view a list of files and folders in the current or specified directory, including attributes, sorting.

-A view a list of all files and folders that are hidden.

[email protected] ~]# ls-a

. 100m.data

.. 1kfile.dat

-A is similar to A, but not displayed. and. These two special folders

[email protected] ~]# ls-a

0k 1Mfile

0kfile anaconda-ks.cfg

-B ignores files or folders that begin with the file name (~ starts with the backup file, folder)

[[email protected] ~]# ls

0k 100m.data 1Mfile install.log test~

[email protected] ~]# ls-b

0k 100m.data 1Mfile Install.log testparm.result

-C Display CTime (change time) and sort by file name when used with-l only

When mated with-lt, it is displayed and sorted by CTime

[email protected] ~]# LS-LC

Total 103600

-rw-r--r--. 1 root root 4 Feb 18:57 0k

-rw-r--r--. 1 root root 0 Feb 9 18:54 0kfile

-rw-r--r--. 1 root root 104857600 Feb 9 18:59 100m.data

-rw-r--r--. 1 root root 9 18:25 1kfile.dat

-rw-r--r--. 1 root root 1048576 Feb 9 18:50 1Mfile

-RW-------. 1 root root 1211 Jan 2 01:25 anaconda-ks.cfg

-rw-r--r--. 1 root root 27312 Jan 2 01:25 Install.log

-rw-r--r--. 1 root root 7572 Jan 2 01:25 install.log.syslog

-rw-r--r--. 1 root root 0 Feb 19:58 test~

-rw-r--r--. 1 root root 17746 Jan 3 18:37 Testparm.result

[email protected] ~]# LS-LTC

Total 103600

-rw-r--r--. 1 root root 0 Feb 19:58 test~

-rw-r--r--. 1 root root 4 Feb 18:57 0k

-rw-r--r--. 1 root root 104857600 Feb 9 18:59 100m.data

-rw-r--r--. 1 root root 0 Feb 9 18:54 0kfile

-rw-r--r--. 1 root root 1048576 Feb 9 18:50 1Mfile

-rw-r--r--. 1 root root 9 18:25 1kfile.dat

-rw-r--r--. 1 root root 17746 Jan 3 18:37 Testparm.result

-RW-------. 1 root root 1211 Jan 2 01:25 anaconda-ks.cfg

-rw-r--r--. 1 root root 27312 Jan 2 01:25 Install.log

-rw-r--r--. 1 root root 7572 Jan 2 01:25 install.log.syslog

-C Displays a list of files and folders by column

-D Mate-L displays information for the directory only, and if no directory is specified later, displays the current directory's

-F does not make any sort, and displays all files, folders, including hidden.

-F adds a special symbol to the end of different types of files and folders (*/=>@| )

= number represents socket file

[email protected] dev]# ll-f log

srw-rw-rw-. 1 root root 0 Feb 17:35 log=

[[email protected] dev]# file log

Log:socket

* Indicates a file with Execute permission (folder not counted)

[email protected] dev]# ll-f/usr/bin/

-rwxr-xr-x. 1 root root 9056 June yum-builddep*

/Number Represents folder

drwxr-xr-x. 2 root root 4096 Nov statetab.d/

--time-style=< Style > Display time is displayed in the specified style. The styles include the following:

Long-iso

[email protected] ~]# ls-l--time-style=long-iso

Total 103600

-rw-r--r--. 1 root root 4 2016-02-12 18:57 0k

-rw-r--r--. 1 root root 0 2016-02-09 18:54 0kfile

Full-iso

[email protected] ~]# ls-l--time-style=full-iso

Total 103600

-rw-r--r--. 1 root root 4 2016-02-12 18:57:37.000000000 +0800 0k

-rw-r--r--. 1 root root 0 2016-02-09 18:54:22.000000000 +0800 0kfile

ISO

[email protected] ~]# ls-l--time-style=iso

Total 103600

-rw-r--r--. 1 root root 4 02-12 18:57 0k

-rw-r--r--. 1 root root 0 02-09 18:54 0kfile

locale

[email protected] ~]# ls-l--time-style=locale

Total 103600

-rw-r--r--. 1 root root 4 Feb 18:57 0k

-rw-r--r--. 1 root root 0 Feb 9 18:54 0kfile

Custom

[[email protected] ~]# ls-l--time-style=+ '%y-%m-%d '

Total 103600

-rw-r--r--. 1 root root 4 2016-02-12 0k

-rw-r--r--. 1 root root 0 2016-02-09 0kfile

Sort by file Volume

-S default from the large to the small sort, if need to invert, can cooperate with the-R parameter

Show a different time

--time=<time type>,time type has atime, CTime, need to be used with-l, if this parameter is not used, the default display Mtime

Sort by different attributes

--sort=word

Sort by WORD instead of Name:none-u, Extension-x,

Size-s, Time-t, version-v

Word can be size, time, version, and if it is time, you need to mate with the--time parameter

[[email protected] ~]# ll-t--time-style=long-iso #按照mtime排序, from new to old, the style shown is Long-iso

-rw-r--r--. 1 root root 2016-01-16 10:59 fun.sh

-rw-r-xr--+ 1 root root 0 2016-01-11 22:18 testfile

-RWX------. 1 root root 171 2016-01-10 20:20 kickuser.sh

[email protected] ~]# ll--sort=time--time=ctime--time-style=long-iso #详写, sorted by time from new to old, The type of time is CTime (change time), and the display is in the style Long-iso

-rw-r--r--. 1 root root 111016 2015-10-09 23:26 httpd.txt

-rw-r--r--. 1 root root 1377 2015-10-04 11:28 netstat.after

-rw-r--r--. 1 root root 843 2015-10-04 11:26 Netstat.before

Linux Learning Note: ls command