man > waitpid(1)

⚡ TLDR: waitpid (tldr-pages)

Wait for the termination of arbitrary processes.

  • Sleep until all processes whose PIDs have been specified have exited
    waitpid {{process_id1 process_id2 ...}}
  • Sleep for at most `n` seconds
    waitpid {{-t|--timeout}} {{n}} {{process_id1 process_id2 ...}}
  • Do not error if specified PIDs have already exited
    waitpid {{-e|--exited}} {{process_id1 process_id2 ...}}
  • Sleep until `n` of the specified processes have exited
    waitpid {{-c|--count}} {{n}} {{process_id1 process_id2 ...}}
  • Display help
    waitpid {{-h|--help}}
WAITPID(1)                                  User Commands                                 WAITPID(1)

NAME
       waitpid - utility to wait for arbitrary processes

SYNOPSIS
       waitpid [-v] [--timeout|-t seconds] pid...

DESCRIPTION
       waitpid is a simple command to wait for arbitrary non-child processes.

       It exits after all processes whose PIDs have been passed as arguments have exited.

OPTIONS
       -v, --verbose
           Be more verbose.

       -t, --timeout seconds
           Maximum wait time.

       -e, --exited
           Don’t error on already exited PIDs.

       -c, --count count
           Number of process exits to wait for.

       -h, --help
           Display help text and exit.

       -V, --version
           Print version and exit.

EXIT STATUS
       waitpid has the following exit status values:

       0
           success

       1
           unspecified failure

       2
           system does not provide necessary functionality

       3
           timeout expired

AUTHORS
       Thomas Weißschuh <thomas AT t-8ch.de>

SEE ALSO
       waitpid(2) wait(1P)

REPORTING BUGS
       For bug reports, use the issue tracker at https://github.com/util-linux/util-linux/issues.

AVAILABILITY
       The waitpid command is part of the util-linux package which can be downloaded from Linux
       Kernel Archive <https://www.kernel.org/pub/linux/utils/util-linux/>.

util-linux 2.39.3                            2023-11-21                                   WAITPID(1)

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