Location agnostic bash script. Demonstrate using paths relative to script, and working directory. Return to working directory on script end.

bash_location_agnostic.sh

#!/usr/bin/env bash
# exit on first failure
set -e
# uncomment to enable debug mode
#set -x

# The location this script is run from
OG_DIR=$(pwd)

# The directory that this script is in
SCRIPT_DIR=$(dirname -- "$0");

# Return to orignal director the script was run from
trap "cd $OG_DIR" EXIT

# Go somewhere or do something relative script location. The `trap` will put us back later
pushd "$SCRIPT_DIR/.."

echo "HELLO THESE ARE THE ARGS $@"