set-git-config.sh

#!/bin/bash

function set_git_config() {
  read -e -p "$2 ($3): " INPUT && [[ ! "$INPUT" ]] && INPUT="$3"
  git config --global "$1" "$INPUT"
}

GITNAME=$(finger `whoami` | awk -F: '{ print $3 }' | head -n1 | sed 's/^ //')
GITMAIL="$(whoami)@blah.com"

set_git_config "user.name" "Enter your full name" "$GITNAME"
set_git_config "user.email" "Enter your email address" "$GITMAIL"