"Small Command Big effect" the third LS command-view directory or file

ls Command View a directory or file

Syntax

ls [options] (PATH)

"Common Options"

-L Long text view file =windows Right-click Property-D View directory PS: General mate-L use-A To view all files under directory (including hidden files)-I display index number (inode)-F to file and identify-T to file modification time sort-R Reverse sort-K displays size in K units

Instance

View/etc/recently modified files and display them in a long format

[[email protected] ~]# ls-lrt/etc/#内容太多, see the effect yourself

View the properties of the/root directory

[Email protected] etc]# ls-ld/root dr-xr-x---. 7 root root 4096 APR 2 00:12/root

Show All Files under/root

[[Email protected] ~]# ls -latotal 116dr-xr-x---.    7  root  root  4096 apr 2 00:12  .dr-xr-xr-x.  26  root  ROOT  4096 APR 2 00:14 &NBSP, .... drwxr-xr-x   2  root root  4096 apr 2 00:12   A-RW-------.   1  root root  1106 Mar 1903:15    Anaconda-ks.cfg-rw-r--r--.   1  root root    9 apr 1  02:51  a.shdrwxr-xr-x   2  root root  4096 apr  2 00:12  B-RW-------.   1  ROOT ROOT  4147 APR  2 00:12  .bash_history-rw-r--r--.   1  root root    18 may 20 2009  .bash_logout-rw-r--r--.   1  root root   176 may 20 2009  .bash_ Profile-rw-r--r--.   1  root root   176 sep 23 2004   .BASHRC ...

Extended : The default is no parameter, which indicates the current directory to . the file at the beginning represents the hidden file

" the little tricks of ls command"

View all directories below root does not contain files

[[email protected] ~]# ls -lf              #<--the directory with the-F label total 72drwxr-xr-x  2 root root  4096 &NBSP;APR&NBSP;2&NBSP;00:12&NBSP;A/-RW-------.   1 root root  1106 Mar  19 03:15 anaconda-ks.cfg-rw-r--r--. &NBSP;&NBSP;1&NBSP;ROOT&NBSP;ROOT&NBSP;&NBSP;&NBSP;9&NBSP;APR  1 02:51 A.shdrwxr-xr-x  2 root root  4096 Apr 2  00:12 b/-rw-r--r--.   1 root root    9 apr 1 02:51  b.shdrwxr-xr-x  2 root root  4096 apr 2 00:12 c/- Rw-r--r--.   1 root root   28 Apr 1 03:38  Date.txt-rw-r--r--.   1 root root  23040 Mar 19 03:15  Install.log-rw-r--r--.   1 root&Nbsp;root  6240 mar 19 03:12 install.log.syslogdrwxr-xr-x  2 root  root  4096 apr 1 21:46 test/-rw-r--r--.   1 root root    16 apr 1 02:17 test.txt[[email protected] ~]# ls -lf |grep /     #<--grep's role in this is to filter content that contains "/",  "|" The role of LS&NBSP;-LF is to submit the contents of the content to grep processing drwxr-xr-x  2 root root  4096 apr 2  00:12 a/drwxr-xr-x  2 root root  4096 apr 2 00:12 b/ drwxr-xr-x  2 root root  4096 apr 2 00:12 c/drwxr-xr-x   2 root root  4096 apr 1 21:46 test/

Extension: This method understands the-F effect to the file plus identity

Summary

1. The function of LS is to view a file or directory.

2. The view directory needs to be added-D not in the view directory.

3. -L can view the details of a file or directory, which is equivalent to the right-click property of Windows.

4. With-LRT, you can view recently modified files.

5. The hidden file is in "." The beginning of the file.

6. | Role is to be | The preceding content is submitted to | To be dealt with later.

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"Small Command Big effect" the third LS command-view directory or file