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How can one extract the exit code of a command and use it in a condition? For example look at the following script:
i=4 if [[ $i -eq 4 && $(command) -eq 0 ]] then echo "OK" else echo "KO" fi
If both the conditions are satisfied the script should do something. In the second condition, I need the check on the exit status (and not the command output as is the case in the script given above), to know if the command was successful or not.