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Re: zsh debug tracing with timestamp
- X-seq: zsh-users 3820
- From: "Bart Schaefer" <schaefer@xxxxxxxxxxxxxxxxxxxxxxx>
- To: Paul Lew <paullew@xxxxxxxxx>, zsh-users@xxxxxxxxxxxxxx
- Subject: Re: zsh debug tracing with timestamp
- Date: Sun, 15 Apr 2001 19:49:43 +0000
- In-reply-to: <15065.17386.300246.739496@xxxxxxxxxxxxxxxxxxxxxxx>
- Mailing-list: contact zsh-users-help@xxxxxxxxxx; run by ezmlm
- References: <15065.17386.300246.739496@xxxxxxxxxxxxxxxxxxxxxxx>
On Apr 14, 11:47pm, Paul Lew wrote:
} Subject: zsh debug tracing with timestamp
}
} Any method to insert timestamp in front of the trace command turned on
} by set -x?
Yes, if you're using 3.1.6 or later. Just set PS4 using any of the usual
prompt expansion escapes, e.g.:
% PS4=': %D %T ; '
% set -x
% sleep 5; echo hello
: 01-04-15 12:43 ; sleep 5
: 01-04-15 12:43 ; echo hello
hello
If you need finer granularity, setopt promptsubst and use $SECONDS:
% setopt promptsubst
: 01-04-15 12:44 ; setopt promptsubst
% PS4=': %D %T {$SECONDS}; '
: 01-04-15 12:44 ; PS4=: %D %T {$SECONDS};
% sleep 5; echo hello
: 01-04-15 12:45 {261}; sleep 5
: 01-04-15 12:45 {266}; echo hello
hello
One-second granularity is the smallest you can get.
I chose the :...; format so that you can cut-and-paste the trace output
into another shell and the leading timestamps will be ignored.
--
Bart Schaefer Brass Lantern Enterprises
http://www.well.com/user/barts http://www.brasslantern.com
Zsh: http://www.zsh.org | PHPerl Project: http://phperl.sourceforge.net
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