From mboxrd@z Thu Jan 1 00:00:00 1970 Return-Path: Received: (qmail 15232 invoked by alias); 23 Apr 2017 03:58:59 -0000 Mailing-List: contact zsh-users-help@zsh.org; run by ezmlm Precedence: bulk X-No-Archive: yes List-Id: Zsh Users List List-Post: List-Help: X-Seq: 22683 Received: (qmail 23451 invoked from network); 23 Apr 2017 03:58:59 -0000 X-Qmail-Scanner-Diagnostics: from mail-vk0-f46.google.com by f.primenet.com.au (envelope-from , uid 7791) with qmail-scanner-2.11 (clamdscan: 0.99.2/21882. spamassassin: 3.4.1. Clear:RC:0(209.85.213.46):SA:0(-0.0/5.0):. Processed in 0.919372 secs); 23 Apr 2017 03:58:59 -0000 X-Spam-Checker-Version: SpamAssassin 3.4.1 (2015-04-28) on f.primenet.com.au X-Spam-Level: X-Spam-Status: No, score=-0.0 required=5.0 tests=RCVD_IN_DNSWL_NONE, RCVD_IN_MSPIKE_H3,RCVD_IN_MSPIKE_WL,SPF_PASS,T_DKIM_INVALID autolearn=unavailable autolearn_force=no version=3.4.1 X-Envelope-From: schaefer@brasslantern.com X-Qmail-Scanner-Mime-Attachments: | X-Qmail-Scanner-Zip-Files: | Received-SPF: pass (ns1.primenet.com.au: SPF record at _netblocks.google.com designates 209.85.213.46 as permitted sender) DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=brasslantern-com.20150623.gappssmtp.com; s=20150623; h=from:message-id:date:in-reply-to:comments:references:to:subject :mime-version; bh=nxAd9jhLjmff1ialJwMpeZ02M9Ud1dRNfYSEdnSloWI=; b=FBYy7uPGM2DT028UY7VlKnASvIvhm4ExyQcJj5xBAv+dITJosyiy3bBbx0AlFgmFN4 D2Y+c8ftIDbRfKQx3DyIPL3rXEo2aP95LNCZEDyw4rX73daKS9fjtn8h5jZJ9iKqxlvm +XvwD/hyNevyDKXax1zTprBLkOU4bW5cYRa2YUMFaXTMZhF3GkIKq1HD6CTKVi3LhhIO 8bNWh/+yUGoFASCvOW2rV3kAgyog6H+YMQutbjJ2VPJYAtKejG5BIJs8fWbFLrb57ZgV A8AFZRR+faapDaKfH5JgS0OFCgw+Qv1pjkCcsk0gmEaEXphc5qOjKg2WDufa2WUz6cBe XH1w== X-Google-DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=1e100.net; s=20161025; h=x-gm-message-state:from:message-id:date:in-reply-to:comments :references:to:subject:mime-version; bh=nxAd9jhLjmff1ialJwMpeZ02M9Ud1dRNfYSEdnSloWI=; b=OUSmvXbOBFVw2njxhJOZGHKUu/fXJ+sNUJARgafCnFXOk0V+e3LVc4dEh5K3fhSR8L EH532oYErb7tv+DRIVWvvHnFB6UVSGXRbSV6ZymA3rVIq8ga75oNDt2JPXnbeuwjXfEK jdtM6JjhaY3l99YtXK1QygONsxznluQhAXHXHiNYJbvRMJn2l0TruVIxDeEA2Av+KkbO 5zdV0wa/zoxokkzQGBqQcEIXXHzcHNoY/whGaVtDfHDlqhDCIFLnlu89ejMuVHky16R1 xpofKRBk45lcfTirC0GXuY6nVwyY2qmAcKasvvTik16gCu6AjHvmT5SfDPov03GDeCPQ ShMA== X-Gm-Message-State: AN3rC/6D99qtoHqnk7MlFD9moZxHFfFodKN50EgvZBWKhkfqLAI5Cv7Q WsyDGfyLcC0FDQ== X-Received: by 10.31.224.131 with SMTP id x125mr77904vkg.114.1492919929216; Sat, 22 Apr 2017 20:58:49 -0700 (PDT) From: Bart Schaefer Message-Id: <170422205847.ZM12164@torch.brasslantern.com> Date: Sat, 22 Apr 2017 20:58:47 -0700 In-Reply-To: Comments: In reply to Steven Lu "A question about debugging zsh using set -x to an independent log file" (Apr 22, 7:56pm) References: X-Mailer: OpenZMail Classic (0.9.2 24April2005) To: zsh-users@zsh.org Subject: Re: A question about debugging zsh using set -x to an independent log file MIME-Version: 1.0 Content-Type: text/plain; charset=us-ascii On Apr 22, 7:56pm, Steven Lu wrote: } } The problem is that this is a heisenbug and it comes and goes, the shell } will be simply unusable when the xtrace output is there, and I can't really } use the shell effectively if I redirect stderr to a file. You probably want to use a trap on the DEBUG pseudo-signal, e.g., TRAPDEBUG() { print -r -- "$ZSH_DEBUG_CMD" >> your_trace_file } Or for closer congruence to set -x trap '{ print -nP -- "$PS4" print -r -- "$ZSH_DEBUG_CMD" } >> your_trace_file' DEBUG This requires "setopt DEBUG_BEFORE_CMD" but unless you've deliberately unset that, it is set by default.