Bash Check If String Is Empty Code Example
Example 1: bash if null or empty
if [ -z "$variable" ]; then echo "$variable is null"; else echo "$variable is not null"; fi
Example 2: bash check if variable is empty
if [ -z "$var" ] #return true if $var is unset
Example 3: bash script check empty string
if [ -z "$var" ] then echo "\$var is empty" else echo "\$var is NOT empty" fi
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