From: Thorsten Kampe <thorsten@thorstenkampe.de>
To: zsh-users@zsh.org
Subject: Re: How to redirect output without escape sequences to a file
Date: Mon, 16 May 2011 13:03:14 +0200 [thread overview]
Message-ID: <iqr0a0$f92$2@dough.gmane.org> (raw)
In-Reply-To: <110509080130.ZM19360@torch.brasslantern.com>
* Bart Schaefer (Mon, 09 May 2011 08:01:30 -0700)
> On May 8, 9:27pm, Thorsten Kampe wrote:
> } I've modified my PS4 so it contains a little bit of colour[1].
>
> I was going to suggest that you stop using the terminal escape
> sequences directly and use the %F prompt escape instead:
>
> PS4='%F{cyan}%B+%b%f%1N[%i]%F{cyan}%B:%b%f '
>
> Theoretically, these are only supposed to be output if the terminal
> supports them, so I thought that setting TERM=dumb would then turn
> off the coloring. But no ... zsh goes for ANSI sequences if the
> terminal definition doesn't specify, so something is always output.
>
> } Is there a way to either strip the escape sequences when redirected to
> } a file or to modify PS4 when stderr is redirected to a file?
>
> So, the alternative is to do the stripping. Instead of
>
> ... >& trace.log
>
> use
>
> ... 2>>(col > trace.log) >&2
>
> Yes, that's somewhat inconvenient.
...and somehow not working (form me). I still got (stripped) color stuff
in the output file ("1m33m-0m39m service:directory-agent" for instance).
"| sed 's/\x1b\[[0-9]\{1,2\}m//g'" worked for me.
How would the command line look like if wanted to pipe stdout and stderr
to sed, and then redirect both to trace.log?
Thorsten
next prev parent reply other threads:[~2011-05-16 11:03 UTC|newest]
Thread overview: 7+ messages / expand[flat|nested] mbox.gz Atom feed top
2011-05-08 19:27 Thorsten Kampe
2011-05-09 1:58 ` Aaron Davies
2011-05-09 15:01 ` Bart Schaefer
2011-05-12 18:10 ` Thorsten Kampe
2011-05-13 6:32 ` Bart Schaefer
2011-05-16 11:03 ` Thorsten Kampe [this message]
2011-05-16 21:36 ` Bart Schaefer
Reply instructions:
You may reply publicly to this message via plain-text email
using any one of the following methods:
* Save the following mbox file, import it into your mail client,
and reply-to-all from there: mbox
Avoid top-posting and favor interleaved quoting:
https://en.wikipedia.org/wiki/Posting_style#Interleaved_style
* Reply using the --to, --cc, and --in-reply-to
switches of git-send-email(1):
git send-email \
--in-reply-to='iqr0a0$f92$2@dough.gmane.org' \
--to=thorsten@thorstenkampe.de \
--cc=zsh-users@zsh.org \
/path/to/YOUR_REPLY
https://kernel.org/pub/software/scm/git/docs/git-send-email.html
* If your mail client supports setting the In-Reply-To header
via mailto: links, try the mailto: link
Be sure your reply has a Subject: header at the top and a blank line
before the message body.
Code repositories for project(s) associated with this public inbox
https://git.vuxu.org/mirror/zsh/
This is a public inbox, see mirroring instructions
for how to clone and mirror all data and code used for this inbox;
as well as URLs for NNTP newsgroup(s).