3.0-pre1 odd behavior

3.0-pre1 odd behavior

[Clint Olsen]

Hello:

Is this a new feature?

misha ~# more \-
Usage: more [-dfln] [+linenum | +/pattern] name1 name2 ...
zsh: exit 1     more -

I've never seen zsh report exit status on jobs in the foreground before.

-Clint

Re: 3.0-pre1 odd behavior

[Bart Schaefer]

On Jul 2,  4:50pm, Clint Olsen wrote:
} Subject: 3.0-pre1 odd behavior
}
} Is this a new feature?
} 
} I've never seen zsh report exit status on jobs in the foreground before.

Happens only with both the `monitor' and `printexitvalue' options set,
and then only for commands that exit nonzero.  I think `printexitvalue'
is a relatively new option, but I'm not sure (I've never set it).

By the way, workers, what's up with `monitor'?

    MONITOR (-m, ksh: -m)
	 Allow job control.  Set by default in interactive shells.

> exec zsh -l
zagzig[21] setopt | grep monitor
monitor             off

-- 
Bart Schaefer                             Brass Lantern Enterprises
http://www.well.com/user/barts            http://www.nbn.com/people/lantern

New male in /home/schaefer:
>N  2 Justin William Schaefer  Sat May 11 03:43  53/4040  "Happy Birthday"

Never mind (Re: 3.0-pre1 odd behavior)

[Bart Schaefer]

On Jul 2,  9:52pm, Bart Schaefer wrote:
} Subject: Re: 3.0-pre1 odd behavior
}
} By the way, workers, what's up with `monitor'?
} 
} > exec zsh -l
} zagzig[21] setopt | grep monitor
} monitor             off

(Sound of hand smacking forehead)

zagzig[41] setopt >>(grep monitor) ; wait
monitor             on

-- 
Bart Schaefer                             Brass Lantern Enterprises
http://www.well.com/user/barts            http://www.nbn.com/people/lantern

New male in /home/schaefer:
>N  2 Justin William Schaefer  Sat May 11 03:43  53/4040  "Happy Birthday"

Re: 3.0-pre1 odd behavior

[Clint Olsen]

On Tue, 2 Jul 1996 21:52:55 -0700, "Bart Schaefer" writes:
>
> Happens only with both the `monitor' and `printexitvalue' options set,
> and then only for commands that exit nonzero.  I think `printexitvalue'
> is a relatively new option, but I'm not sure (I've never set it).

I am not enabling the printexitvalue or the monitor.  This must be turned
on by default:

~# setopt
allexport
autolist
automenu
bgnice
hashcmds
hashdirs
hashlistall
interactive
login
monitor
notify
printexitvalue
rcexpandparam
shinstdin
zle

-Clint

Re: 3.0-pre1 odd behavior

[Bart Schaefer]

On Jul 3,  9:30am, Clint Olsen wrote:
} Subject: Re: 3.0-pre1 odd behavior
}
} On Tue, 2 Jul 1996 21:52:55 -0700, "Bart Schaefer" writes:
} >
} > Happens only with both the `monitor' and `printexitvalue' options set,
} 
} I am not enabling the printexitvalue or the monitor.  This must be turned
} on by default:

Monitor is on by default for interactive shells, but printexitvalue is
never on by default.

Here's a wild shot in the dark:  How are you starting zsh?

	zsh -l		# Dash-ell, makes zsh a login shell
	zsh -1		# Dash-one, turns on printexitvalue

I could envision someone looking at the FAQ or manual pages in certain
typefaces/fonts and misreading dash-ell as dash-one ...

The only other possibility is that some /etc/zsh* file is setting the
option for you.

-- 
Bart Schaefer                             Brass Lantern Enterprises
http://www.well.com/user/barts            http://www.nbn.com/people/lantern

New male in /home/schaefer:
>N  2 Justin William Schaefer  Sat May 11 03:43  53/4040  "Happy Birthday"

Re: 3.0-pre1 odd behavior

[Clint Olsen]

On Wed, 3 Jul 1996 10:15:23 -0700, "Bart Schaefer" writes:
>
> 	zsh -l		# Dash-ell, makes zsh a login shell
> 	zsh -1		# Dash-one, turns on printexitvalue
> 
> The only other possibility is that some /etc/zsh* file is setting the
> option for you.

Well, I was doing a setopt -1 to turn on NO_CLOBBER, but apparently the
keybindings have changed!

>From 2.6.beta11:

           NO_CLOBBER (-1)
                Prevents > redirection from truncating existing files.  >!
                may be used to truncate a file instead.  Also prevents >>
                from creating files.  >>! may be used instead.

>From 3.0-pre1:
          PRINT_EXIT_VALUE (-1)
               Print the exit value  of  programs  with  non-zero
               exit status.

It would be nice if the features in ZSH weren't so fluid between versions.

-Clint

Re: 3.0-pre1 odd behavior

[Zoltan Hidvegi]

> On Jul 2,  4:50pm, Clint Olsen wrote:
> > exec zsh -l
> zagzig[21] setopt | grep monitor
> monitor             off

Only the last command of a pipe runs in the current shell environment, and
in a subshell monitor is turned off.

But as it already turned out this behaviour was caused by the swap between
-1 and -C.  Every other Bourne-style shell uses -C for noclobber.  It would
be possible to use -C for noclobber only when zsh is invoked as sh/ksh but
that may cause confusion so I decided to make -C noclobber even is zsh
mode.  In zsh scripts only option names shoud be used to turn options
on/off.  Option names will not change and this will make the script more
readable.

Zoltan