zsh pid completion

zsh pid completion

[Marko Myllynen]

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.)

Thanks,

-- 
Marko Myllynen

Re: zsh pid completion

[Mikael Magnusson]

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'

-- 
Mikael Magnusson

Re: zsh pid completion

[Daniel Shahaf]

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)

Re: zsh pid completion

[Marko Myllynen]

Hi,

On 2016-05-20 00:14, Daniel Shahaf wrote:
> 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:
>>>
>>> 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)

Nice, this is handy indeed. The next thing I was about to as was
completions for pidof(8) but with the above something like "ps s<tab>"
works better than plain pidof(8).

Thanks,

-- 
Marko Myllynen