git-tstatus

#!/bin/sh
SUBDIRECTORY_OK=Yes
. $(git --exec-path)/git-sh-setup

git for-each-ref --shell --format=\
"refname=%(refname:short) "\
"author=%(authorname) "\
"sha1=%(objectname) "\
"upstream=%(upstream:short)" \
refs/heads | while read daten
do
    eval "$daten"
    if [ -n "$upstream" ] ; then
        ahead=$(git rev-list $upstream..$refname | wc -l)
        behind=$(git rev-list $refname..$upstream | wc -l)
        echo $refname
        echo -------------------- 
        echo     "    Upstream:      "$upstream
        echo     "    Letzter Autor: "$author
        echo     "    Commit-ID      "$(git rev-parse --short $sha1)
        echo -n  "    Status:        "
        [ $ahead  -gt 0 ] && echo -n "ahead:"$ahead" "
        [ $behind -gt 0 ] && echo -n "behind:"$behind" "
        [ $behind -eq 0 ] && [ $ahead -eq 0 ] && echo -n "synchron!"
        echo
    fi
done