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Variables

Variables

To decleare variable: LOL=“xd” To refrence a variable u have to add $ : echo $LOL IMPORTANT! Statment in ’’ pritnts the variable name BashVaraiblesQuotes_visual.png - This avoids the collision with possible commands - also $ worsk similar to an f string >[!example]- >#!/bin/bash myname=“Jay” myage: 40 echo “Hello, my name is $myname” echo “Im $myage >>[!tip]- Result >> Hello, my name is Jay Im 40 years old ## Sub-shell **It allows to execute command in the background** Variables can also nested otuputs of the functions **variable=$(command)**

[!example]- files=$(ls) echo files >[!tip]- Result >360px-Sweden_in_European_Union.svg.png bash-test bookmarks.sh books dzieniczek.pdf dzienik.pdf For International >

Constans

Variables like $USER are constants - env gives u a list of all envairomental variables! - TO add somthitn to the PATH * exportPATH = /user/local/bin:PATH*

  • To delete Varaible use unset