1. The processSnapshot will always be empty: the ps output is going to the file

2. when you pass the pattern as a variable, use the pattern match operator:

    findProcess=$( awk -v pname="$findProcessName" '$0 ~ pname' $tempFile )
   

3. only use backticks when you need the output of a command. This rm $tempFile executes the rm command, returns the output back to the shell and, it the output is non-empty, the shell attempts to execute that output as a command. Remove the backticks.

Of course, you don't need the temp file at all:

pgrep -fl $findProcessName

1. The processSnapshot will always be empty: the ps output is going to the file

2. when you pass the pattern as a variable, use the pattern match operator:

    findProcess=$( awk -v pname="$findProcessName" '$0 ~ pname' $tempFile )
   

3. only use backticks when you need the output of a command. This

    `rm $tempFile` 
   

   executes the rm command, returns the output back to the shell and, it the output is non-empty, the shell attempts to execute that output as a command.

    $ `echo foo`
    bash: foo: command not found
    $ `echo whoami`
    jackman
   

   Remove the backticks.

Of course, you don't need the temp file at all:

pgrep -fl $findProcessName