Ctrl-C Kills Nohup Background Processes - Help Doco

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Ctrl-C Kills Nohup Background Processes

This page answers questions like these:

  • Why is Ctrl-C killing my background processes?
  • Why does Ctrl-C kill my background processes?
  • Why is Ctrl-C killing my nohup processes?
  • Why does Ctrl-C kill my nohup processes?
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Why is Ctrl-C Killing My Background Processes?

On some systems, using Ctrl-C to kill the currently running process will also kill sub-processes, even if they've been started with nohup. To remedy this, the subprocesses need to be started using setsid as follows: setsid nohup COMMAND &
  • setsid runs its first argument (nohup) with a new Process Group ID, thus stopping Ctrl-C from killing it.
  • nohup runs its first argument (COMMAND) such that it will ignore hangup signals (SIGHUP).
  • & runs setsid in the background.
  • This command can be used on the command line or inside a shell script.
Related Links: Make Faster on a Multicore or Multi CPU Machine Home > Linux / Unix > Ctrl-C Kills Nohup Background Processes Tags: nohup ctrl c, ctrl c kills background processes, nohup, background, processes, linux, unix, solaris, bsd, aix Copyright © HelpDoco.com ctrl-c-kills-background-processes.txt Linux-Unix/ctrl-c-kills-nohup-background-processes.htm 1

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