I have a shell script. In this script I executes various command and my requirement is such that if any command fails I've to terminate the shell script.

To achieve this objective I'm checking the value of $? after each command and if its value is greater thaen I 'exit' the script.

Is there any way through which I can avoid the if condition on $? after each and every command as It a pain to put if condition after every command.

You can write a function, say "handle_error" where you can define the if condition, and execute this function whenever you need it.

This will make the script terminate on any unhandled error.

It's more picky than you think, so a script which was not written to cope with this probably has unchecked commands which might bite you in the back. (It's good for the self-discipline, of course.)

For example, anything like hello && echo success will terminate the script if hello fails. You need to rewrite that as an if ... then, or artificially add || true at the end.