Who does GIT think you are?

git-whoami.sh

#!/bin/bash

MODE_SHOW=short
SHOW_MAIL=1
SHOW_NAME=1

while [ $# -gt 0 ]
do
    case "$1" in
        "-h"|"--help")
            echo "usage: $(basename $0) [-h|--help] [-N|--no-name] [-E|--no-email] [-l|--long]"
            exit 1
            ;;
        "-E"|"--no-email") SHOW_MAIL=0;;
        "-N"|"--no-name")  SHOW_NAME=0;;
        "-l"|"--long")     MODE_SHOW=long;;
        *)
            echo "ignoring unknown argument: \"$1\""
        ;;
    esac
    shift
done


RAW=$(git config --list | egrep '^user\.' | perl -pe 's!^user\.(name|email)\=!${1} !')
NAME=$(echo "${RAW}" | egrep "^name "  | awk '{$1="";print $0}' | perl -pe 's!^\s+?!!;')
MAIL=$(echo "${RAW}" | egrep "^email " | awk '{$1="";print $0}' | perl -pe 's!^\s+?!!;')

case "$MODE_SHOW" in
    "short")
        if [ $SHOW_NAME -eq 1 -a $SHOW_MAIL -eq 1 ]
        then
            echo "${NAME} <${MAIL}>"
        elif [ $SHOW_NAME -eq 1 ]
        then
            echo "${NAME}"
        elif [ $SHOW_MAIL -eq 1 ]
        then
            echo "${MAIL}"
        fi
        ;;
    *)
        if [ $SHOW_NAME -eq 1 -a $SHOW_MAIL -eq 1 ]
        then
            echo "name: ${NAME}"
            echo "email: ${MAIL}"
        elif [ $SHOW_NAME -eq 1 ]
        then
            echo "name: ${NAME}"
        elif [ $SHOW_MAIL -eq 1 ]
        then
            echo "email: ${MAIL}"
        fi
        ;;
esac