You can write a function that launches and tests the command for you. Assume command1 and command2 are environment variables that have been set to a command. function mytest { “$@” local status=$? if (( status != 0 )); then echo “error with $1” >&2 fi return $status } mytest “$command1” mytest “$command2”
Try: my_command || { echo ‘my_command failed’ ; exit 1; } Four changes: Change && to || Use { } in place of ( ) Introduce ; after exit and spaces after { and before } Since you want to print the message and exit only when the command fails ( exits with non-zero value) … Read more
You are presumably encountering an exception and the program is exiting because of this (with a traceback). The first thing to do therefore is to catch that exception, before exiting cleanly (maybe with a message, example given). Try something like this in your main routine: import sys, traceback def main(): try: do main program stuff … Read more
You can use Environment.Exit(0); and Application.Exit Environment.Exit(0) is cleaner.
The raiserror method raiserror(‘Oh no a fatal error’, 20, -1) with log This will terminate the connection, thereby stopping the rest of the script from running. Note that both severity level 20 or higher and the WITH LOG option are necessary for it to work this way. This even works with GO statements, eg. print … Read more
exit is a helper for the interactive shell – sys.exit is intended for use in programs. The site module (which is imported automatically during startup, except if the -S command-line option is given) adds several constants to the built-in namespace (e.g. exit). They are useful for the interactive interpreter shell and should not be used … Read more
From man bash on return [n]; Causes a function to stop executing and return the value specified by n to its caller. If n is omitted, the return status is that of the last command executed in the function body. … on exit [n]: Cause the shell to exit with a status of n. If … Read more
There’s no difference – they are the same. PHP Manual for exit: Note: This language construct is equivalent to die(). PHP Manual for die: This language construct is equivalent to exit().
Use the set -e builtin: #!/bin/bash set -e # Any subsequent(*) commands which fail will cause the shell script to exit immediately Alternatively, you can pass -e on the command line: bash -e my_script.sh You can also disable this behavior with set +e. You may also want to employ all or some of the the … Read more
Try this statement: exit 1 Replace 1 with appropriate error codes. See also Exit Codes With Special Meanings.