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Old 10-05-2007
drl's Avatar
drl drl is offline Forum Advisor  
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Join Date: Apr 2007
Location: Saint Paul, MN USA / BSD, CentOS, Debian, OS X, Solaris
Posts: 711
Hi.

You may be able to build something on your own -- see below, among the 300K hits found by Google "bash trap trace" ... cheers, drl
Quote:
# Bash includes the caller builtin, which displays the context of any active subroutine call (a shell function or a script executed with the . or source builtins). This supports the bash debugger.
# The trap builtin (see section 4.1 Bourne Shell Builtins) allows a DEBUG pseudo-signal specification, similar to EXIT. Commands specified with a DEBUG trap are executed before every simple command, for command, case command, select command, every arithmetic for command, and before the first command executes in a shell function. The DEBUG trap is not inherited by shell functions unless the function has been given the trace attribute or the functrace option has been enabled using the shopt builtin. The extdebug shell option has additional effects on the DEBUG trap.

-- excerpt from bash differences