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Add comments about option parsing.

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William Melody 2018-05-15 08:37:24 -07:00
parent 647c4329c9
commit 5ee732006d
1 changed files with 15 additions and 0 deletions
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@ -123,6 +123,21 @@ die() {
###############################################################################
# Options
#
# NOTE: The `getops` builtin command only parses short options and BSD `getopt`
# does not support long arguments (GNU `getopt` does), so the most portable
# and clear way to parse options is often to just use a `while` loop.
#
# For a pure bash `getopt` function, try pure-getopt:
# https://github.com/agriffis/pure-getopt
#
# More info:
# http://wiki.bash-hackers.org/scripting/posparams
# http://www.gnu.org/software/libc/manual/html_node/Argument-Syntax.html
# http://stackoverflow.com/a/14203146
# http://stackoverflow.com/a/7948533
# https://stackoverflow.com/a/12026302
# https://stackoverflow.com/a/402410
###############################################################################
# Get raw options for any commands that expect them.