I just want to know how to know that whether I find my Configuration sciprt and how I can know the content inside my configuration script

or dot (.) commands to accomplish this. If your finder.sh script cannot find a3config, then it should throw an error message and terminate the script with a non zero exit code. $ ./finder.sh Error cannot find a3config $ echo $? The echo $? command is included above to merely show you the exit code from the script was non zero. If either of the variables DIRNAME or EXTENSION is not present in a3config or if their values are empty, the script should display an error message and terminate with a non zero exit code. $ ./finder.sh Error DIRNAME and EXTENSION must be set $ echo $? If the directory mentioned in DIRNAME does not exist, then the script should throw an error message and terminate