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Editorial Team
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Asked: 2026-05-26T05:42:28+00:00

I am trying to write a simple shell which accepts command line input and

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I am trying to write a simple shell which accepts command line input and execute it as a background task.

How do I allow the child process to report to the parent process once it is completed, like the Bash shell?

user@user-desktop:~$ sleep 10 &
[1] 3729
user@user-desktop:~$ sleep 2 &
[2] 3730
user@user-desktop:~$ 
[1]-  Done                    sleep 10
[2]+  Done                    sleep 2
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1 Answer

  1. Editorial Team

    Since this is your homework, I won’t give you full answer.

    The GNU Glibc manual list the requirnment for job control shell. Let’s see if you can understand it.

    Basically:

    • you have to change the control terminal to make jobs run in background

    • you have to handle SIGCHLD (or wait) to monitor jobs

    Ask again after you have read it.

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