fish-shell/doc_src/cmds/jobs.rst
2022-09-17 21:31:06 +08:00

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.. _cmd-jobs:
jobs - print currently running jobs
===================================
Synopsis
--------
.. synopsis::
jobs [OPTIONS] [PID | %JOBID]
Description
-----------
``jobs`` prints a list of the currently running :ref:`jobs <syntax-job-control>` and their status.
``jobs`` accepts the following options:
**-c** or **--command**
Prints the command name for each process in jobs.
**-g** or **--group**
Only prints the group ID of each job.
**-l** or **--last**
Prints only the last job to be started.
**-p** or **--pid**
Prints the process ID for each process in all jobs.
**-q** or **--query**
Prints no output for evaluation of jobs by exit status only. For compatibility with old fish versions this is also **--quiet** (but this is deprecated).
**-h** or **--help**
Displays help about using this command.
On systems that support this feature, jobs will print the CPU usage of each job since the last command was executed. The CPU usage is expressed as a percentage of full CPU activity. Note that on multiprocessor systems, the total activity may be more than 100\%.
Arguments of the form *PID* or *%JOBID* restrict the output to jobs with the selected process identifiers or job numbers respectively.
If the output of ``jobs`` is redirected or if it is part of a command substitution, the column header that is usually printed is omitted, making it easier to parse.
The exit status of ``jobs`` is ``0`` if there are running background jobs and ``1`` otherwise.
Example
-------
``jobs`` outputs a summary of the current jobs, such as two long-running tasks in this example:
.. code-block:: none
Job Group State Command
2 26012 running nc -l 55232 < /dev/random &
1 26011 running python tests/test_11.py &