On Mon, Apr 06, 2015 at 10:04:12AM -0500, Eduardo A. Bustamante López wrote: > The `script2' I provided ran with set -T is the closest you'll get to what you > expect, but, since DEBUG runs *before* the source command, it'll not work as > you want.
It doesn't matter whether the old DEBUG trap runs before or after the new trap is defined. It's not about the output. That's a red herring. The problem is the second trap definition *does not stick*. imadev:~$ echo 'trap ": one" DEBUG' > foo imadev:~$ echo 'trap ": two" DEBUG' > bar imadev:~$ trap - DEBUG imadev:~$ source ./foo imadev:~$ source ./bar imadev:~$ trap -p DEBUG trap -- ': one' DEBUG It's still got the first definition, not the second one.
