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jobs [ -dlprs ] [ job ... ]
jobs -Z string
Lists information about each given job, or all jobs if job is
omitted. The -l flag lists process IDs, and the -p flag lists
process groups. If the -r flag is specified only running jobs
will be listed and if the -s flag is given only stopped jobs are
shown. If the -d flag is given, the directory from which the
job was started (which may not be the current directory of the
job) will also be shown.
The -Z option replaces the shell's argument and environment
space with the given string, truncated if necessary to fit.
This will normally be visible in ps (ps(1)) listings. This fea-
ture is typically used by daemons, to indicate their state.
Full job control is only available in the top-level interactive
shell, not in commands run in the left hand side of pipelines or
within the (...) construct. However, a snapshot of the job
state at that point is taken, so it is still possible to use the
jobs builtin, or any parameter providing job information. This
gives information about the state of jobs at the point the sub-
shell was created. If background processes are created within
the subshell, then instead information about those processes is
provided.
For example,
sleep 10 & # Job in background
( # Shell forks
jobs # Shows information about "sleep 10 &"
sleep 5 & # Process in background (no job control)
jobs # Shows information about "sleep 5 &"
)
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