Getting “command not found” error while comparing two strings in Bash

Question

My whole Script is currently this:

#!/bin/sh   
clear;   
blanko=\"\";   
# Dummy-Variablen
variable=Testvariable;   
if [[$variable == $blanko]];
then   
           


        

Answer 1

This is problem:

if [[$variable == $blanko]];

Spaces are required inside square brackets, use it like this:

[[ "$variable" == "$blanko" ]] && echo "Nichts da!" || echo "$variable"