Git set remote from `git remote -v` call

git_set_remote.sh

#!/usr/bin/bash
# allows to play back a remote configuration backed up with `git remote -v > remote.txt`
set -o errexit
set -o nounset
shopt -s nullglob
remoteFile="$1"
[[ -f "$remoteFile" ]] || { echo "Error: file $remoteFile does not exist"; exit 1; }
while read name url ; do
	if git remote get-url "$name" >/dev/null 2>&1 ; then
		echo "Remote $name already exists"
	else
		echo "Setting remote $name to $url"
		git remote add "$name" "$url"
	fi
done < <(cat "$remoteFile" | awk -c '{print $1, $2;}' | uniq)