The linux command file filtering magical

when we just want to show the folder, it can often ....

first of all, there has to be such a environment.

The first way (using grep command to filter ):

command:ls-l|grep D

command:ls-lf|grep/$

The second way (using awk command to filter ):

command:Ls-l|awk '/d/{print $} '

command:Ls-l|awk/^d/

command:Ls-l|awk '/d/{print $NF} '

The Third Way (using sed command to filter ):

command: ls-l|sed-n '/d/p '

Fourth Way ( filter by using the Find command)

command : find/wuxb/day1/-type D

Find Common parameters:

-type Find a file of a certain type: for example:

B- block device files

D- Catalog

C- character device files

P- Piping file

| - Symbolic Link file

F- normal file

-name finding files by file name

The-exec find command executes the shell command given by the parameter to the matching file . The corresponding command is in the form of 'command{} \; ' Note The space between {} and / ;

File filtering for Linux commands magical