get relative path example

#!/bin/bash

#get relative path example
#start path: /tmp/test/dir1/subidr1/startpoint
#end path: /tmp/test/dir2/subdir2/endpoint

START="/tmp/test/dir1/subidr1/startpoint"
END="/tmp/test/dir2/subdir2/endpoint"

mkdir -p "$START"
mkdir -p "$END"

cd "$START"
echo -n "Start directory:"
pwd

RP=`realpath --relative-to="$START" "$END"`
echo "Relative path: $RP"

echo "CD to relative path:"
cd "$RP"

echo -n "End directory:"
pwd