Move apps to SD card storage and create symbolic links at original positions pointing to the new paths. HAVE NOT TRIED, USE WITH CARE.

moveapp2sdcard

#!/usr/bin/env bash

name=$(basename $0)

usage="link files/directories to destination.\n\
usage: $name [-i|-p] <src> <abs dst dir>\n\
-i\task before overwriting\n\
-p\tpreview operations before executing\n"

confirm=''
preview=0

while getopts ":ip" opt; do
    case $opt in
        i)
            confirm='-i'
            ;;
        p)
            preview=1
            ;;
        \?)
            echo "$name: bad option -$OPTARG"
            echo -e $usage
            exit 1
            ;;
    esac
done

shift $(($OPTIND - 1))

if [ $# -ne 2 ]; then
    echo -e $usage
    exit 1
fi

src=$1
dst=$2

! [ -e $src ] && { echo "$name: $src does not exist"; exit 1; }
! [ -e $dst ] && { echo "$name: $dst does not exist"; exit 1; }

if ! [ -d $dst ]; then
    echo "$name: ${dst} is not a directory"
    exit 1
fi

target="${dst%/}/$(basename $src)"

# warn on non-absolute destination paths
if [ ${target:0:1} != '/' ]; then
    echo "$name: warning: non-absolute destination paths may cause broken links"
    if [ ${target:0:1} == '.' ]; then
        target=${target:2}
    fi
    target="$(pwd)/$target"
fi

if [ $preview -eq 1 ]; then
    echo "mv $confirm $src $target"
    echo "ln $confirm -s $target $src"
else
    mv $confirm $src $target
    ln $confirm -s $target $src
fi

exit 0