restore busybox functions (applets) on a (remote) device

restore_busybox_functions_links.sh

#!/bin/bash
# restore busybox functions' links
# suppose that busybox is in PATHs

DOREMOTE=${DOREMOTE:-adb shell}
LOCALRUNNER=`busybox which busybox 2>/dev/null`

busybox which busybox || RUN=${RUN:-$DOREMOTE busybox}
$LOCALRUNNER which adb || RUN=${RUN:-busybox}
RUN=${RUN:-$DOREMOTE busybox}

FUNCS=`$RUN | $LOCALRUNNER tr -d '\r' | $LOCALRUNNER grep -A99 defined | $LOCALRUNNER tail -n +2 | $LOCALRUNNER tr -d ,`
BB=`$RUN which busybox | $LOCALRUNNER tr -d '\r'`
echo $BB | grep -q / || BB=/system/xbin/busybox
echo $BB | grep -q /system/ || BB=/system/xbin/busybox
DEST=${DEST:-`$LOCALRUNNER dirname $BB`}

[[ "$1" == "-n" ]] && RUN="echo $RUN"

$LOCALRUNNER which adb && adb remount
for f in $FUNCS; do
	$RUN ln -s busybox $DEST/$f
done