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..
Copyright (c) 2021 Varnish Software AS
SPDX-License-Identifier: BSD-2-Clause
See LICENSE file for full text of license
.. _ref-shell_tricks:
%%%%%%%%%%%%
Shell Tricks
%%%%%%%%%%%%
All the varnish programs can be invoked with the single
argument ``--optstring`` to request their `getopt()`
specification, which simplifies wrapper scripts:
.. code-block:: text
optstring=$(varnishfoo --optstring)
while getopts "$optstring" opt
do
case $opt in
n)
# handle $OPTARG
;;
# handle other options
*)
# ignore unneeded options
;;
esac
done
varnishfoo "$@"
# do something with the options
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