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how it is executed:
* If the item is a string, it will be interpreted by ``sh``.
* If the item is a list, the items will be executed as if passed to execve(3)
(with the first arg as the command).
Note that the ``runcmd`` module only writes the script to be run
later. The module that actually runs the script is ``scripts_user``
in the :ref:`Final` boot stage.
.. note::
all commands must be proper yaml, so you have to quote any characters
yaml would eat (':' can be problematic)
.. note::
when writing files, do not use /tmp dir as it races with
systemd-tmpfiles-clean LP: #1707222. Use /run/somedir instead.
Z cc_runcmdZRuncmdzRun arbitrary commandsa runcmd:
- [ ls, -l, / ]
- [ sh, -xc, "echo $(date) ': hello world!'" ]
- [ sh, -c, echo "=========hello world'=========" ]
- ls -l /root
- [ wget, "http://example.org", -O, /tmp/index.html ]
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