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Date: Thu, 19 May 2016 21:14:05 +0000
From: Daniel Shahaf <d.s@daniel.shahaf.name>
To: Mikael Magnusson <mikachu@gmail.com>
Cc: Marko Myllynen <myllynen@redhat.com>, zsh workers <zsh-workers@zsh.org>
Subject: Re: zsh pid completion
Message-ID: <20160519211405.GA8007@tarsus.local2>
References: <573AF76D.2010106@redhat.com>
 <CAHYJk3SDb5H9wQ8fmbwegTUYMS5xbQnqEQoVn0oWVBZr_UYJLA@mail.gmail.com>
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User-Agent: Mutt/1.5.23 (2014-03-12)

Mikael Magnusson wrote on Tue, May 17, 2016 at 18:48:24 +0200:
> On Tue, May 17, 2016 at 12:50 PM, Marko Myllynen <myllynen@redhat.com> wrote:
> > Hi,
> >
> > I see that _pids completion offers only a very limited subset of the
> > running pids (even by the same user). For example, if I launch a command
> > on a terminal its PID is not included in completion alternatives on
> > another terminal. Also, when root, in some cases it might be beneficial
> > to offer also non-root PIDs (perhaps this could be configurable).
> >
> > Is there some reason for this limited approach? (I'm not sending any
> > patches yet, I'm afraid with ps(1) portability might be a bit tricky.)
> 
> No need for a patch, you can just set a style to run whatever ps
> command you like to generate the matches, i use:
> zstyle ':completion:*:processes' command 'ps ax -o
> user,pid,nice,%cpu,%mem,vsz,rss,tname,stat,start,time,command
> --sort=-%cpu'
> 
> These are also possible
> zstyle ':completion:*:processes' command 'ps aux'
> zstyle ':completion:*:processes' command 'ps --forest -A -o pid,user,cmd'

There's also a variant that allows cycling through user processes, all
user processes, and all processes:

http://www.zsh.org/cgi-bin/mla/redirect?USERNUMBER=20372

('_next_tags' is a widget that needs to be bindkey'd; I bind it to ^Xn)