Shell Flags (shFlags) is a library written to
greatly simplify the handling of command-line
flags in Bourne based Unix shell scripts (such as
those run with bash, dash, ksh, sh, and zsh). Most
shell scripts use getopt for flag processing, but
the different versions of getopt on various OSes
make writing portable shell scripts difficult.
shflags instead provides an API that doesn't
change across shell and OS versions, so the script
writer can be confident that the script will work.
