I'm trying to automate a STIG check for our Vcenter appliance but having an issue with doing a nested if statement, perhaps there are some experts here that can help. I've tried flipping between single and double quotes and changed things around a couple times and it works line by line but I cannot get it working as a script. Current code:

#!/bin/bash

sFile='/root/sshd_config' #Vuln 123456

if [[ -f $sFile ]]

then

echo 'file existgs'

if grep '#UsePAM no' $sFile

then

echo 'setting exists'

sed -i 's/#UsePAM no/#UsePAM yes/' $sFile

fi

else

echo 'file doesnt exist'

fi

I know there has to be something simple I'm missing, unless the shell inside is stripped down in some way?

Edit: I'm a dunce, I typed '#UsePAM' in here but when I reread last night in the VM I had '$UsePam' so the grep was never matching.