Re: [Help-bash] How to prevent duplicate echo when using set -x?

[Dan Douglas]

On Friday, August 10, 2012 07:19:19 PM adrelanos wrote:
> I want to let debugging with set -x activate, but not show any comments
> twice. Do you know a solution?

#!/bin/bash

set() {
    set "$@"
    toggleEchoWrap
}

toggleEchoWrap()
    if [[ $- == *x* ]]; then
        echo() {
            <()
        }
    else
        unset -f echo
    fi

main() {
    # ...
}

toggleEchoWrap
main "$@"


I wouldn't actually do this. Use Bashdb and Bash's many debugging features for 
big scripts.

If your code is really huge enough to require documented code you might want 
ksh for its self-documenting classes/methods via typeset -h.

In Gentoo we use an awk script to generate eclass manpages, in case you'd like 
to roll your own hack.

http://sources.gentoo.org/cgi-bin/viewvc.cgi/gentoo-x86/app-portage/eclass-
manpages/files/eclass-to-manpage.awk
--
Dan Douglas

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