When to exit parent script from child script?
However, as pointed out in other answer, the cleanest way is to exit from parent, after the child returns. Don’t try to terminate the parent from the child. Instead call exit in the parent after the child script returned. Extension to @anishsane comment because MacOS has little bit different ps syntax.
How to send a signal to child processes from a bash?
If the children have children process of their own, and we want to terminate them all when the ancestor receives a signal, we can send a signal to the entire process group, as we saw before. This, however, presents a problem, since by sending a termination signal to the process group, we would enter a “signal-sent/signal-trapped” loop.
What happens when you use Exec in Bash?
Using latter actually spawns a child process. Bash waits for the child to finish and then exits itself. Using exec, the program replaces the calling process (the parent process) and no child process is spawned. This behavior might be useful if the parent is not required.
How to find parent process ID in child script?
Finding parent process ID (ppid) in child script under Mac OS (Darwin): Depending on your needs, using set -e at the top of your script might be a good solution.
What causes Bash to exit with a non zero exit code?
This will automatically cause the script to exit if any commands (e.g., your error checking script) exit with a non-zero exit code ( https://vaneyckt.io/posts/safer_bash_scripts_with_set_euxo_pipefail/) Note that there are some common commands that have non zero exit codes under normal circumstance.
Why does PowerShell script not end when there is a non-zero exit code?
Why does a PowerShell script not end when there is a non-zero exit code using when using the call operator and $ErrorActionPerference = “Stop”? Using the following example, I get the result managed to get here with exit code 1:
What happens when there is an exit code?
Using the following example, I get the result managed to get here with exit code 1: The Microsoft documentation for the call operator does not discuss what should happen when using call operator, it only states the following: Runs a command, script, or script block.