Parse command line options

31 May 2007

Use the getopts shell utility

while getopts d:s o
do case "$o" in
 d) value_of_d="$OPTARG";;
 s) saw_an_s="TRUE";;
shift $OPTIND-1

# the remaining arguments are in $*

In getopts optstring name the string optstring contains a letter for each option that the script understands, follow a letter with : if the option receives an argument.