bash if null or empty
if [ -z "$variable" ];
then echo "$variable is null";
else echo "$variable is not null";
fibash if null or empty
if [ -z "$variable" ];
then echo "$variable is null";
else echo "$variable is not null";
fishell 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/Copyright © 2021 Codeinu
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