move-untracked-file

#!/usr/bin/env bash
if [ "$1" == "" ]; then
    echo "Error: missing first file name."
    exit 1
fi
if ! [ -f "portfolio-webpage-untracked/$1" ]; then
    echo "Error: first file does not exist."
    exit 1
fi
if [ "$2" == "" ]; then
    echo "Error: missing second file name."
    exit 1
fi

mv portfolio-webpage-untracked/"$1" portfolio-webpage-untracked/"$2"
if [ -f "$1" ]; then
    rm "$1"
fi

ln "$PWD"/portfolio-webpage-untracked/"$2" "$PWD"
echo "$2" >> .gitignore
GITIGNORE_OUT="$(sort .gitignore | grep -v "$1")"
echo "$GITIGNORE_OUT" > .gitignore