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a simple way to parse shell script arguments
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#!/bin/sh | |
# | |
# a simple way to parse shell script arguments | |
# | |
# please edit and use to your hearts content | |
# | |
ENVIRONMENT="dev" | |
DB_PATH="/data/db" | |
function usage() | |
{ | |
echo "if this was a real script you would see something useful here" | |
echo "" | |
echo "./simple_args_parsing.sh" | |
echo "\t-h --help" | |
echo "\t--environment=$ENVIRONMENT" | |
echo "\t--db-path=$DB_PATH" | |
echo "" | |
} | |
while [ "$1" != "" ]; do | |
PARAM=`echo $1 | awk -F= '{print $1}'` | |
VALUE=`echo $1 | awk -F= '{print $2}'` | |
case $PARAM in | |
-h | --help) | |
usage | |
exit | |
;; | |
--environment) | |
ENVIRONMENT=$VALUE | |
;; | |
--db-path) | |
DB_PATH=$VALUE | |
;; | |
*) | |
echo "ERROR: unknown parameter \"$PARAM\"" | |
usage | |
exit 1 | |
;; | |
esac | |
shift | |
done | |
echo "ENVIRONMENT is $ENVIRONMENT"; | |
echo "DB_PATH is $DB_PATH"; |
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