parameter.sh

Author: Yungho Yi 이영호
Date: 2. 19. 2016
Description:
  To run a shell script with various commands for Jenkins, I implemented a small shell script function to parse parameters
  Possible Parameter Inputs:
    -a 1 3 2 4 -b 1 3 2 1 -> (-a 1 3 2 4) (-b 1 3 2 1)
    132 1 -a 3 -> (-a 3)
    -a 3-2 -> (-a 3-2)
    -a -2 -> (-a)

#!/bin/bash

endOff=$#
curOff=0
param=($@)
reg="^[\-][\S]*"

func_param()
{
	while [ $curOff -lt $endOff ] && ! [[ ${param[curOff]} =~ $reg ]]
	do
		echo ${param[curOff]}
		let curOff++
	done
}

# entry point
# do something here before to parse the regular parameters

while [ $curOff -lt $endOff ]
do
	case ${param[curOff]} in
	-a) OFFSET=$curOff
		let curOff++
		echo "option a ${curOff}"
		func_param
	;;
	-b) FILE=$curOff
		let curOff++
		echo "file b ${curOff}"
		func_param
	;;
	*) let curOff++
	esac
done