bashdb, kshdb, and zshdb are debuggers for Bash,
ksh, and zsh scripts respectively. The debugger
command interface is modeled on the gdb command
interface. Front-ends supporting bashdb include
GNU-Emacs and ddd.
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Tab completion of debugger commands is now provided if built with bash source available. bashdb now can also set $0 to the debugged program. Debugger help text was improved and a number of bugs were fixed.