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Date: Fri, 1 Jan 2016 18:36:24 +0000
From: Stephane Chazelas <stephane.chazelas@gmail.com>
To: Martijn Dekker <martijn@inlv.org>
Cc: zsh-users@zsh.org
Subject: Re: Suppress tracing of "set +x"
Message-ID: <20160101183624.GA8456@chaz.gmail.com>
Mail-Followup-To: Martijn Dekker <martijn@inlv.org>, zsh-users@zsh.org
References: <20151230104531.GA20496@linux.vnet.ibm.com>
 <5683F898.7010907__5021.31003090671$1451490149$gmane$org@inlv.org>
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User-Agent: Mutt/1.5.21 (2010-09-15)

2015-12-30 16:30:32 +0100, Martijn Dekker:
> Dominik Vogt schreef op 30-12-15 om 11:45:
> > "set -x" is very handy when printing commands from buils scripts
> > and such, but what really annoys me is that the final "set +x"
> > that ends tracing is also printed.  Is there really no way to
> > suppress tracing of this specific command?
> 
> { set +x; } 2>/dev/null
[...]

You can also enable set -x in a subshell only:

(
  set -x
  cmd1 traced
  cmd2 traced
)
cmd3 not traced

Or using an anynymous function:

(){
  setopt localoptions xtrace
  cmd1 traced
  cmd2 traced
}
cmd3 not traced

That affects the PS4 display though.

-- 
Stephane