There are 3 repositories under getopts topic.
An elegant option/argument parser for shell scripts (full support for bash and all POSIX shells)
An high level argument parsing library for bash
An "upgrade" to BASH built-in getopts, with support for GNU-style long option.
BASH Argument Parser allows for easy access to command line arguments
Shell scripts to monitor production server logs and store the result in a file.
A getopt implementation of tcl that compat with GNU getopt
JavaScript's answer to getopts. Simple, obvious, and direct.
argparse or getopt examples for different languages
Allows you to combine getopt with getopts and also get rid of the need for --longopt=x
A collection of textexpander snippets I created
An Inko library for parsing command-line arguments and options
C++ command line arguments parser with the popular features of other command line parsers, while keeping an intuitive interface and avoiding unnecessary bloat.
Simple and reliable high performance command-line options parser.
A bash script to check the dimensions of images recursively, using getopts
Simple, light, cross-platform C++ class for parsing command line options
POSIX/GNU compliant CLI argument parser
Examples of parsing command line arguments in BASH