1The GetoptLong class allows you to parse command line options similarly to the
2GNU getopt_long() C library call. Note, however, that GetoptLong is a pure Ruby
3implementation.
4
5GetoptLong allows for POSIX-style options like --file as well as single letter
6options like -f
7
8The empty option -- (two minus symbols) is used to end option processing. This
9can be particularly important if options have optional arguments.
10