Shell Programming and Scripting

Data_Center_costing=205
Financial_loss=45
operational_cost=78

awk 'NR==FNR{A[$1]=$2; next} $1 in A{$2=A[$1]}1' FS=\\= OFS=\\= modfile file > newfile &&
mv "newfile" "file"

tui-value-set -?

tui-value-set (0.1 - BETA)
Save values to conf files
Usage: 		tui-value-set [options] FILE VALUENAME VALUE
Examples:	tui-value-set -l  /etc/default/grub
		tui-value-set     /etc/default/grub GRUB_TIMEOUT 15	| Saves VALUENAME as passed (VALUENAME)
		tui-value-set -ic /etc/default/grub grub_timeout 15	| Saves valuename as VALUENAME
		tui-value-set -i  /etc/default/grub grub_timeout 15	| Saves valuename as passed (valuename)
		tui-value-set -is /etc/default/grub GRUB_TIMEOUT 15	| Saves VALUENAME as valuename
		
Where options are:
	-h|--help		This screen
	-i|--irrelevant		Is no longer case sensitive
	-l|--list		Lists values available in the file
	-c|--caps		Writes the VALUE, and stores VALUENAME in capitals
	-s|--small		Writes the VALUE, and stores VALUENAME in lower chars

cat $(which tui-value-set )
#!/bin/bash
#
#	Author: 	Simon Arjuna Erat (sea)
#	Contact:	erat.simon@gmail.com
#	License:	GNU Lesser General Public License (LGPL)
#	Created:	2014.04.24
#	Changed:	2014.04.24
	script_version=0.1
#	Description:	Set a value in an 'conf/ini' file
#
#	Variables
#
	#set -x
	#source tui
	TITLE="Save values to conf files"
	ME="${0##*/}"
	ME_DIR="${0/${0##/*/}}"
	help_text="
$ME ($script_version - BETA)
$TITLE
Usage: 		$ME [options] FILE VALUENAME VALUE
Examples:	$ME -l  /etc/default/grub
		$ME     /etc/default/grub GRUB_TIMEOUT 15	| Saves VALUENAME as passed (VALUENAME)
		$ME -ic /etc/default/grub grub_timeout 15	| Saves valuename as VALUENAME
		$ME -i  /etc/default/grub grub_timeout 15	| Saves valuename as passed (valuename)
		$ME -is /etc/default/grub GRUB_TIMEOUT 15	| Saves VALUENAME as valuename
		
Where options are:
	-h|--help		This screen
	-i|--irrelevant		Is no longer case sensitive
	-l|--list		Lists values available in the file
	-c|--caps		Writes the VALUE, and stores VALUENAME in capitals
	-s|--small		Writes the VALUE, and stores VALUENAME in lower chars
"
	OPT=""
	VALUE=""
	CONFFILE=""
	VARNAME=""
	CAPS=false
	SMALL=false
#
#	Catching Arguments
#
	[[ -z $2 ]] && printf "$help_text" && exit $RET_HELP
	while getopts "i(irrelevant)c(caps)s(small)l(list)h(help)": name
	do 	case $name in
		c|caps)
			CAPS=true
			SMALL=false
			;;
		s|small)
			SMALL=true
			CAPS=false
			;;
		i|irrelevant)
			OPT="-i"
			;;
		l|list)
			grep -v ^# "$2"|grep "="|sed s,"="," ",g|awk '{print $1}'
			exit 0
			;;
		h|help)
			printf "$help_text"
			exit $RET_HELP
			;;
		esac
	done
	if [ -z $OPT ] 
	then 	CONFFILE="$1"
		VARNAME="$2"
		VALUE="$3"
	else 	CONFFILE="$2"
		VARNAME="$3"
		VALUE="$4"
	fi
	
#
#	Display & Action
#
	SEARCH=$(grep $OPT "$VARNAME" "$CONFFILE"|grep -v ^#)
	$SMALL && VARNAME="${VARNAME,,}"
	$CAPS  && VARNAME="${VARNAME^^}"
	REPLACE="$VARNAME=\"$VALUE\""
	
	# Set proper SED 'divider'
	SD=","
	printf "$REPLACE"|grep "," && SD="/"
	printf "$REPLACE"|grep '\\' && SD="/"
	printf "$REPLACE"|grep "/" && SD="\\"
	
	[ -z "$SEARCH" ] && \
		printf "${REPLACE}\n" >> "$CONFFILE" || \
		sed s${SD}"$SEARCH"${SD}"${REPLACE}"${SD}g -i "$CONFFILE"
		#sed s\\"$SEARCH"\\"${REPLACE}"\\g -i "$CONFFILE"

tui-value-set "/pathto/file" "VARIABLE_NAME" "newvalue"

#!/bin/ksh
awk '
BEGIN {	FS = OFS = "="
	c["Data_Center_costing"] = 205
	c["Financial_loss"] = 45
	c["operational_cost"] = 78
}
$1 in c {
	$2 = c[$1]
}
1' input > output$$ && mv output$$ input