#!/bin/bash
Nom7z="`basename "$PWD"`.7z"
if [ $# -eq 1 ]
then
   Nom7z=${1%.*}
   7z a "$Nom7z" "$1"
else
   if [ $# -eq 0 ]
   then
      7z a "$Nom7z" *
   else
      7z a "$Nom7z" "$*"
   fi
fi