Victrid

#!/bin/bash

hash git 2>/dev/null || { echo >&2 "Required command 'git' is not installed. ( hmm... why are you using this? ) Aborting."; exit 1; }
hash realpath 2>/dev/null || { echo >&2 "Required command 'realpath' is not installed. Aborting."; exit 1; }
hash pwd 2>/dev/null || { echo >&2 "Required command 'pwd' is not installed. Aborting."; exit 1; }
hash cd 2>/dev/null || { echo >&2 "Required command 'cd' is not installed. Aborting."; exit 1; }
hash echo 2>/dev/null || { echo >&2 "Required command 'echo' is not installed. Aborting."; exit 1; }
hash mv 2>/dev/null || { echo >&2 "Required command 'mv' is not installed. Aborting."; exit 1; }
hash diff 2>/dev/null || { echo >&2 "Required command 'diff' is not installed. Aborting."; exit 1; }
hash diffstat 2>/dev/null || { echo >&2 "Required command 'diffstat' is not installed. Aborting."; exit 1; }