bash script treats string as command

Question

I have a noobish problem with a bash script. It treats a string as command.

Script is

 #!/bin/bash
 if ["$(pidof whatever)"]
 then
  echo "suicide"
 fi
 exit 0

The error I get at run is "[29999] command is not found".

Ty for your help and time.

Answer 1

You need a space between [ and $. [ is test command.

 #!/bin/bash
 if [ $(pidof whatever) ]
 then
  echo "suicide"
 fi
 exit 0