getopt - KineticTheory/Linux-HPC-Env GitHub Wiki

Introduction

getopt provides an easy to use mechanism for parsing command line arguments for bash scripts.

Example

##---------------------------------------------------------------------------##
## Default values
##---------------------------------------------------------------------------##
build_autodoc="off"
build_type=Debug
dashboard_type=Experimental
projects="draco"
extra_params=""
regress_mode="off"
epdash=""
scratchdir=`selectscratchdir`
prdash="-"
unset nfb

##---------------------------------------------------------------------------##
## Command options
##---------------------------------------------------------------------------##

while getopts ":ab:d:e:f:ghp:r" opt; do
case $opt in
a)  build_autodoc="on";;
b)  build_type=$OPTARG ;;
d)  dashboard_type=$OPTARG ;;
e)  extra_params=$OPTARG
    epdash="-";;
f)  featurebranches=$OPTARG
    nfb=`echo $featurebranches | wc -w` ;;
h)  print_use; exit 0 ;;
p)  projects=$OPTARG ;;
r)  regress_mode="on" ;;
\?) echo "" ;echo "invalid option: -$OPTARG"; print_use; exit 1 ;;
:)  echo "" ;echo "option -$OPTARG requires an argument."; print_use; exit 1 ;;
esac