/Shell/Bash/Shell cehck if string is null

Shell cehck if string is null

my_var="nixCraft"
if [ -z "$my_var" ]
then
      echo "\$my_var is NULL"
else
      echo "\$my_var is NOT NULL"
fi

// https://www.cyberciti.biz/faq/bash-shell-find-out-if-a-variable-has-null-value-or-not/

-1

Similar codes

1 vote133 views1 answer
Branch on carry clear
Shell/Bash
6 votes162 views2 answers
Nano add line numbers
Shell/Bash
0 vote165 views4 answers
Cut tab linux
Shell/Bash
0 vote179 views1 answer
Sed from match to other match
Shell/Bash
33 votes151 views6 answers
Npm install express
Shell/Bash
14 votes171 views6 answers
How to update vscode on ubuntu
Shell/Bash
35 votes193 views1 answer
How to isntall yran in your system
Shell/Bash
0 vote165 views1 answer
Open new port on ufw
Shell/Bash
0 vote175 views1 answer
ModuleNotFoundError: No module named 'parler'
Shell/Bash
0 vote176 views1 answer
Bash debug show line numbers
Shell/Bash