[Convert env to args] #args #env #bash

convertEnvToArgs.sh

#!/bin/bash
# Convert PREFIX_XXX=YYY variable to --xxx=YYY
PREFIX=$1
DEFAULT=$DEFAULT_ARGS
RESULT=
if [ ${#PREFIX} -ge 2 ]; then
	while IFS= read -r line
	do
		PRE_KEY=$(echo $line | cut -d'=' -f1)
		KEY=$(echo $PRE_KEY |sed -e "s/$PREFIX/--/g; s/_/-/g; s/\(.*\)/\L\1/")
		VALUE=${line:${#PRE_KEY}}
		if [ "$VALUE" == "=@Null" ]; then
			RESULT="$KEY $RESULT"	
		else
			RESULT="$KEY$VALUE $RESULT"
		fi
	done < <(env| grep ^$PREFIX)
	echo $RESULT
else 
	echo $DEFAULT
fi