Dieser Artikel hilft, umfangreiche Shell-Skripte zu debuggen.

#!/bin/bash
# debug.sh - Simple debug functions for shell scripts
# Copyright (C) Son Sep  9 11:59:18 MEST 2001 by Ingo Blechschmidt
# The script is from http://www.sourceforge.net/users/rstickley/.
#
#  This program is free software; you can redistribute it and/or modify
#  it under the terms of the GNU General Public License as published by
#  the Free Software Foundation; either version 2 of the License, or
#  (at your option) any later version.
#
#  This program is distributed in the hope that it will be useful,
#  but WITHOUT ANY WARRANTY; without even the implied warranty of
#  MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
#  GNU General Public License for more details.
#
#  You should have received a copy of the GNU General Public License
#  along with this program; if not, write to the Free Software
#  Foundation, Inc., 675 Mass Ave, Cambridge, MA 02139, USA.
#
# Ingo Blechschmidt
# Arberstraße 5
# 86179 Augsburg
# E-Mail: iblech@web.de, http://www.way.to/uselinux/
# Tel.: +49 / 821 882955
#
# 

function debug {
  echo -ne "\ndeb> "
  read -e mOn
  while [ ! -z "$mOn" ]; do
    eval $mOn
    echo -ne "\ndeb> "
    read -e mOn
  done
}
  
# Usage:
#
# First call '. debug.sh' in your script at the top. This enables the
# debugging. Call at a place you want to debug the function debug. Then a debug
# prompt is displayed. Use a simple <CR> to return.

#!/bin/bash

. debug.sh

[...]
a=b
debug
[...]

deb> echo $a
b

deb> <CR>