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Editing File: /usr/share/insserv/seq-changes

#! /bin/bash
# Script from Frans Pop

set -e

if [ -z "$1" ]; then
	echo "Usage: insserv-seq-changes /var/lib/insserv/<old bootscripts tarball>"
	exit 1
fi

oldtar="$(tar tzf $1)"
for i in S $(seq 0 6); do
	echo "Runlevel $i"
	new="$(cd /etc/rc$i.d; ls -1 [KS]* | sort | nl)"
	old="$(echo "$oldtar" | grep "^rc$i.d/[KS]" | cut -d/ -f2 | sort | nl)"
	case $i in
	    S|0|6)
		old="$(echo "$old" | sed -r "s/[KS][0-9]+//")"
		new="$(echo "$new" | sed -r "s/[KS][0-9]+//")"
		;;
	    *)
		old="$(echo "$old" | sed -r "s/([KS])[0-9]+/\1_/")"
		new="$(echo "$new" | sed -r "s/([KS])[0-9]+/\1_/")"
		;;
	esac
	echo "$new" | while read num cmd; do
		oldnum=$(echo "$old" | grep "[[:space:]]$cmd$" | awk '{print $1}')
		if [ "$oldnum" ]; then
			diff=$(($num - $oldnum))
		else
			oldnum="---"
			diff=""
		fi
		if [ ${#cmd} -ge 16 ]; then
			echo -e "$cmd\t$num\t$oldnum\t$diff"
		elif [ ${#cmd} -ge 8 ]; then
			echo -e "$cmd\t\t$num\t$oldnum\t$diff"
		else
			echo -e "$cmd\t\t\t$num\t$oldnum\t$diff"
		fi
	done
	echo "$old"  | while read num cmd; do
		if ! echo "$new" | grep -q "[[:space:]]$cmd$"; then
			if [ ${#cmd} -ge 16 ]; then
				echo -e "$cmd\t---\t$oldnum"
			elif [ ${#cmd} -ge 8 ]; then
				echo -e "$cmd\t\t---\t$oldnum"
			else
				echo -e "$cmd\t\t\t---\t$oldnum"
			fi
		fi
	done
	echo
done

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