#!/bin/bash
 
functionmnt() {
    echo"MOUNTING"
    sudomount-t proc /proc${2}proc
    sudomount-t sysfs /sys${2}sys
    sudomount-o bind /dev${2}dev
 
    sudochroot ${2}
}
 
functionumnt() {
    echo"UNMOUNTING"
    sudoumount${2}proc
    sudoumount${2}sys
    sudoumount${2}dev
 
}
 
 
if[ "$1"== "-m"] && [ -n "$2"] ;
then
    mnt $1 $2
elif[ "$1"== "-u"] && [ -n "$2"];
then
    umnt $1 $2
else
    echo""
    echo"Either 1'st,2'nd or both parameters were missing"
    echo""
    echo"1'st parameter can be one of these: -m(mount) OR -u(umount)"
    echo"2'nd parameter is the full path of rootfs directory(with trailing '/')"
    echo""
    echo"For example: ch-mount -m /media/sdcard/"
    echo""
    echo1st parameter : ${1}
    echo2nd parameter : ${2}
fi