must know linux commands for developers

Must know linux commands for developers

Hi devs in this article we are going to see most important commands offered by linux. You can improve your productivity using these linux commands. Lets see what linux has to offer.

Check linux version.

uname -a

Find file with name Resident.php in current and sub directories

find . -name Resident.php

Search for directory - folder

find / -type d -name 'folder name'

Move file in same parent folder's sub folder

So here we are moving "laravel.log" file from logs folder to test folder.

find logs -maxdepth 1 -name "laravel.log" -exec mv {} test \;

find logs -name 'laravel.log' -exec sh -c 'mv "$@" test' find-sh {} +

// Moving back to logs folder
find storage/test -maxdepth 1 -name "laravel.log" -exec mv {} storage/logs \;

Find a file in sub folders and move to desktop

find folderName -name fileName -exec sh -c 'mv "$@" FolderNameWhereYouWantToMove' find-sh {} +;

// This will search file "fileName" under "folderName" directory and then will move to "FolderNameWhereYouWantToMove" folder

Create a file add text in it.

echo write something to file.txt | cat > file.txt

Append text to a file.

echo -e write something to file.txt >> file.txt 

// will add "write something to file.txt" string in "file.txt" file.

Clearing file content.

 > file.txt

// will remove the content of file.txt

Clear file and add txt again (Running one command after another)

> file.txt && echo -e write something to file.txt >> file.txt

// Here first we are empty a file and then add a string in it

// so 2 commands run 

1st : > file.txt // clears the file
2nd : echo -e write something to file.txt >> file.txt  // adds "something to file.txt" to file

Combine Content from multiple files and output in single file

cat file.txt file1.txt > 0.txt

// will add content of file.txt and file1.txt and put in new file 0.txt

Move all files from one folder to another

mv storage/test/* storage/logs/ 

Create multiple folder inside a folder

mkdir -p test/{0..4}

Here command will create folders inside "test" folder. as we mentioned {0..4} we will see 5 folder from 0,1,2,3,4.

Empty A folder

rm -rf test/*

This command will remove all files and folders from "test" folder.