thanks

bash debugger. You can use this tool to debug bash shell script

The following kind people have contributed to this debugger. 

Eric Blake <ebb9 at byu dot edu> - packaging/build fixes. cygwin packaging
Manfred Tremmel <Manfred.Tremmel at iiv.de> - RPM building for SuSE
Masatake YAMATO <jet at gyve.org> - Emacs support, screenshots, progress meter
Matthias Klose <doko at cs dot tu-berlin dot de> - making build system and 
                                                   package more industrial 
                                                   strength.
Mikael Andersson  snikkt at telia dot com - "V" command auto* fixes
Oleksandr Moskalenko  <malex at tagancha dot org> Debian packaging
Matt Fleming          - NetBSD packaging