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Full Discussion: Problem with getopts
Top Forums Shell Programming and Scripting Problem with getopts Post 302111229 by Raghuram.P on Tuesday 20th of March 2007 07:43:20 AM
Old 03-20-2007
Hi,
You can achieve the same without using getopts :
Code:
#!/usr/bin/bash

ARGUMENTS="a:b"
check_in_args()
{
	PAT=`echo ${ARGUMENTS} | awk -F: -v arg=$1 '{
			for(i=1;i<=NF;i++)
			{
				if("-" $i == arg)
				{
					printf("FOUND");
					break;
				}
			}
		}'`
	if [ "${PAT}" = "FOUND" ]
	then
		return 1
	else
		return 0
	fi
}

while [ $# -ne 0 ]
do
	case $1 in
	-a)
		check_in_args $2 RET
		if [ $? -eq 1 ]
		then
			A_VAL=""
		else
			A_VAL="$2"
			shift
		fi
	;;
	-b)
		check_in_args $2 RET
		if [ "${RET}" = "1" ]
		then
			B_VAL=""
		else
			B_VAL="$2"
			shift
		fi
	;;
	*)
	;;
	esac
	shift
done
echo "A:${A_VAL}"
echo "B:${B_VAL}"

Thanks
Raghu

Last edited by Perderabo; 03-20-2007 at 01:22 PM.. Reason: Add code tags for readability
 

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LIBBASH(7)							  libbash Manual							LIBBASH(7)

NAME
libbash -- A bash shared libraries package. DESCRIPTION
libbash is a package that enables bash dynamic-like shared libraries. Actually its a tool for managing bash scripts whose functions you may want to load and use in scripts of your own. It contains a 'dynamic loader' for the shared libraries ( ldbash(1)), a configuration tool (ldbashconfig(8)), and some libraries. Using ldbash(1) you are able to load loadable bash libraries, such as getopts(1) and hashstash(1). A bash shared library that can be loaded using ldbash(1) must answer 4 requirments: 1. It must be installed in $LIBBASH_PREFIX/lib/bash (default is /usr/lib/bash). 2. It must contain a line that begins with '#EXPORT='. That line will contain (after the '=') a list of functions that the library exports. I.e. all the function that will be usable after loading that library will be listed in that line. 3. It must contain a line that begins with '#REQUIRE='. That line will contain (after the '=') a list of bash libraries that are required for our library. I.e. every bash library that is in use in our bash library must be listed there. 4. The library must be listed (For more information, see ldbashconfig(8)). Basic guidelines for writing library of your own: 1. Be aware, that your library will be actually sourced. So, basically, it should contain (i.e define) only functions. 2. Try to declare all variables intended for internal use as local. 3. Global variables and functions that are intended for internal use (i.e are not defined in '#EXPORT=') should begin with: __<library_name>_ For example, internal function myfoosort of hashstash library should be named as __hashstash_myfoosort This helps to avoid conflicts in global name space when using libraries that come from different vendors. 4. See html manual for full version of this guide. AUTHORS
Hai Zaar <haizaar@haizaar.com> Gil Ran <ril@ran4.net> SEE ALSO
ldbash(1), ldbashconfig(8), getopts(1), hashstash(1) colors(1) messages(1) urlcoding(1) locks(1) Linux Epoch Linux
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