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I have a Postgres console command createdb appname_production_master, which return error exit code if the database with this name already exists.
Is it possible to make this command do not return any exit code?
811
The signals 2 (SIGINT) , 3 (SIGQUIT) , and 20 (SIGTSTP) will be ignored by the shell process.
To silence the output of a command, we redirect either stdout or stderr — or both — to /dev/null. To select which stream to redirect, we need to provide the FD number to the redirection operator.
Exit When Any Command Fails This can actually be done with a single line using the set builtin command with the -e option. Putting this at the top of a bash script will cause the script to exit if any commands return a non-zero exit code.
If you are executing a Bash script in your terminal and need to stop it before it exits on its own, you can use the Ctrl + C combination on your keyboard.
Just ignore the exit code, for example like this.
createdb appname_production_master || true
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