Can you kill a parent process while leaving its child process to complete normally?
I'm running a shell script we'll call parent that has a loop. Each iteration in the loop executes something else we'll call child, and when that completes (synchronous/blocking), my script goes to the next iteration.
Is there a way in linux to detach child from the parent process, and then kill parent while leaving the current child to complete normally?
(I think next time I'll include a check inside my loop for the existence of a stop file, and if the file is present, I'll break out of the loop instead of launching the next child. But seeing as the parent that's currently running doesn't have that logic, is there still a way for me to accomplish what I want at the command line?)
linux bash shell process
asked Jan 10 at 21:38
user3735178user3735178
11
add a comment |
I'm running a shell script we'll call parent that has a loop. Each iteration in the loop executes something else we'll call child, and when that completes (synchronous/blocking), my script goes to the next iteration.
Is there a way in linux to detach child from the parent process, and then kill parent while leaving the current child to complete normally?
(I think next time I'll include a check inside my loop for the existence of a stop file, and if the file is present, I'll break out of the loop instead of launching the next child. But seeing as the parent that's currently running doesn't have that logic, is there still a way for me to accomplish what I want at the command line?)
linux bash shell process
asked Jan 10 at 21:38
user3735178user3735178
11
in the shell usecommand <paramenters> &to detach and do not wait for the child to finish
– matzeri
Jan 11 at 15:18
Compare What happens to background jobs after exiting the shell? and Control which process gets cancelled by Ctrl+C. Yourchildprobably gets SIGHUP fromparentor SIGINT from TTY.
– Kamil Maciorowski
Jan 11 at 16:53
add a comment |
I'm running a shell script we'll call parent that has a loop. Each iteration in the loop executes something else we'll call child, and when that completes (synchronous/blocking), my script goes to the next iteration.
Is there a way in linux to detach child from the parent process, and then kill parent while leaving the current child to complete normally?
(I think next time I'll include a check inside my loop for the existence of a stop file, and if the file is present, I'll break out of the loop instead of launching the next child. But seeing as the parent that's currently running doesn't have that logic, is there still a way for me to accomplish what I want at the command line?)
linux bash shell process
asked Jan 10 at 21:38
user3735178user3735178
11
I'm running a shell script we'll call parent that has a loop. Each iteration in the loop executes something else we'll call child, and when that completes (synchronous/blocking), my script goes to the next iteration.
Is there a way in linux to detach child from the parent process, and then kill parent while leaving the current child to complete normally?
(I think next time I'll include a check inside my loop for the existence of a stop file, and if the file is present, I'll break out of the loop instead of launching the next child. But seeing as the parent that's currently running doesn't have that logic, is there still a way for me to accomplish what I want at the command line?)
linux bash shell process
linux bash shell process
asked Jan 10 at 21:38
user3735178user3735178
11
asked Jan 10 at 21:38
user3735178user3735178
11
asked Jan 10 at 21:38
user3735178user3735178
11
asked Jan 10 at 21:38
user3735178user3735178
11
asked Jan 10 at 21:38
user3735178user3735178
11
11
in the shell usecommand <paramenters> &to detach and do not wait for the child to finish
– matzeri
Jan 11 at 15:18
Compare What happens to background jobs after exiting the shell? and Control which process gets cancelled by Ctrl+C. Yourchildprobably gets SIGHUP fromparentor SIGINT from TTY.
– Kamil Maciorowski
Jan 11 at 16:53
add a comment |
in the shell usecommand <paramenters> &to detach and do not wait for the child to finish
– matzeri
Jan 11 at 15:18
Compare What happens to background jobs after exiting the shell? and Control which process gets cancelled by Ctrl+C. Yourchildprobably gets SIGHUP fromparentor SIGINT from TTY.
– Kamil Maciorowski
Jan 11 at 16:53
in the shell use
command <paramenters> & to detach and do not wait for the child to finish– matzeri
Jan 11 at 15:18
in the shell use
command <paramenters> & to detach and do not wait for the child to finish– matzeri
Jan 11 at 15:18
Compare What happens to background jobs after exiting the shell? and Control which process gets cancelled by Ctrl+C. Your
child probably gets SIGHUP from parent or SIGINT from TTY.– Kamil Maciorowski
Jan 11 at 16:53
Compare What happens to background jobs after exiting the shell? and Control which process gets cancelled by Ctrl+C. Your
child probably gets SIGHUP from parent or SIGINT from TTY.– Kamil Maciorowski
Jan 11 at 16:53
add a comment |
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in the shell use
command <paramenters> &to detach and do not wait for the child to finish– matzeri
Jan 11 at 15:18
Compare What happens to background jobs after exiting the shell? and Control which process gets cancelled by Ctrl+C. Your
childprobably gets SIGHUP fromparentor SIGINT from TTY.– Kamil Maciorowski
Jan 11 at 16:53