Bash does not process the script correctly. What's wrong?

Question

bash

In the next question, when run, the result is 0, although there is not zero, how to make it pass the correct values ​​from exim -bpc?

#!/bin/bash
exim -bpc
result=$?

if [ $result -gt 50 ]; then

    echo "Before sending:" >f.txt

    echo $result >>f.txt

    exim -qff

    exiqgrep -o 86400 -i | xargs exim -Mrm

    echo "After force sending:" >>f.txt

    exim -bpc >>f.txt

    mail -s "Forced sending" [email protected] <./f.txt
    

fi

Answer 1

In the variable $? is the return code of the previous command. Usually zero means that it completed successfully.
You want to get the data that the command printed to stdout, for this bash (and *sh in general) has the $( command ) construct .
In your case the fix is ​​trivial:
result=$(exim -bpc)