few questions

few questions

[Bruno Bonfils]

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Hi all,

it's possible to have alias like :

alias ls='ls --color'
alias 'ls -l'='ls -lh --color' <- doesn't work :(


Regards, Bruno

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Re: few questions

[Max Ischenko]

Bruno Bonfils wrote:

> it's possible to have alias like :
> 
> alias ls='ls --color'
> alias 'ls -l'='ls -lh --color' <- doesn't work :(
alias lh='ls -lh' 

-- 
An experienced user learns to be pessimistic.

Re: few questions

[Bart Schaefer]

On Nov 21, 10:29am, Bruno Bonfils wrote:
}
} alias ls='ls --color'
} alias 'ls -l'='ls -lh --color' <- doesn't work :(

This is what shell functions are for.

    function ls {
      case "$1" in
        -l) command ls --color -h "$@";;
        *) command ls --color "$@";;
      esac
    }

Equivalently but more obscurely:

    function ls {
      [[ "$1" == -l ]] && 1=-lh
      command ls --color "$@";
    }

Be sure to remove your alias for `ls' if you're going to use a function.

-- 
Bart Schaefer                                 Brass Lantern Enterprises
http://www.well.com/user/barts              http://www.brasslantern.com

Zsh: http://www.zsh.org | PHPerl Project: http://phperl.sourceforge.net   

Re: few questions

[Vincent Lefevre]

On Wed, Nov 21, 2001 at 16:07:52 +0000, Bart Schaefer wrote:
> On Nov 21, 10:29am, Bruno Bonfils wrote:
> }
> } alias ls='ls --color'
> } alias 'ls -l'='ls -lh --color' <- doesn't work :(
> 
> This is what shell functions are for.

Well, this is a bit annoying as a function can't be avoided with "\".

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Re: few questions

[Zefram]

Vincent Lefevre wrote:
>Well, this is a bit annoying as a function can't be avoided with "\".

alias ls=fiddled_ls
function fiddled_ls { ...; }

-zefram

Re: few questions

[Bart Schaefer]

On Nov 21,  5:08pm, Zefram wrote:
} Subject: Re: few questions
}
} Vincent Lefevre wrote:
} >Well, this is a bit annoying as a function can't be avoided with "\".
} 
} alias ls=fiddled_ls
} function fiddled_ls { ...; }

Except that you should do that in the opposite order if you're planning
to make reference to `ls' in the body of `fiddled_ls'.  See question 2.3
in the zsh FAQ.

-- 
Bart Schaefer                                 Brass Lantern Enterprises
http://www.well.com/user/barts              http://www.brasslantern.com

Zsh: http://www.zsh.org | PHPerl Project: http://phperl.sourceforge.net   

Re: few questions

[Bart Schaefer]

On Nov 21,  5:08pm, Zefram wrote:
}
} Vincent Lefevre wrote:
} >Well, this is a bit annoying as a function can't be avoided with "\".
} 
} alias ls=fiddled_ls
} function fiddled_ls { ...; }

Something just occurred to me:

    alias '\ls'='command ls'

-- 
Bart Schaefer                                 Brass Lantern Enterprises
http://www.well.com/user/barts              http://www.brasslantern.com

Zsh: http://www.zsh.org | PHPerl Project: http://phperl.sourceforge.net   

Re: few questions

[Zefram]

Bart Schaefer wrote:
>    alias '\ls'='command ls'

Or you could less confusingly alias ".ls" or something like that.
The ability to alias a particular pattern of quoting always seems to
me to lack any basis in theoretical sense or in practical utility;
like aliases in general, it is Bad and Wrong.

-zefram

Re: few questions

[Vincent Lefevre]

On Wed, Nov 21, 2001 at 17:51:05 +0000, Zefram wrote:
> Bart Schaefer wrote:
> >    alias '\ls'='command ls'
> 
> Or you could less confusingly alias ".ls" or something like that.

But this wouldn't be a generic method to escape a function. Anyway,
another user suggested to use "=ls".

-- 
Vincent Lefèvre <vincent@vinc17.org> - Web: <http://www.vinc17.org/> - 100%
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Jeux Mathématiques et Logiques, TETRHEX, etc.
Work: CR INRIA - computer arithmetic / SPACES project at LORIA

Re: few questions

[Bart Schaefer]

On Nov 21,  5:51pm, Zefram wrote:
}
} The ability to alias a particular pattern of quoting always seems to
} me to lack any basis in theoretical sense or in practical utility

It's not really aliasing a particular pattern of quoting.  It's aliasing
an arbitrary string of characters before quoting is stripped.  From the
viewpoint of aliases, `\ls' is not really quoting the `l'; it's simply
not the same word as `ls' at the time aliases are resolved, and therefore
doesn't match an alias for `ls'.

-- 
Bart Schaefer                                 Brass Lantern Enterprises
http://www.well.com/user/barts              http://www.brasslantern.com

Zsh: http://www.zsh.org | PHPerl Project: http://phperl.sourceforge.net   

Re: few questions

[Giorgos Keramidas]

On 2001-11-21 17:15:59, Vincent Lefevre wrote:
> On Wed, Nov 21, 2001 at 16:07:52 +0000, Bart Schaefer wrote:
> > On Nov 21, 10:29am, Bruno Bonfils wrote:
> > }
> > } alias ls='ls --color'
> > } alias 'ls -l'='ls -lh --color' <- doesn't work :(
> >
> > This is what shell functions are for.
>
> Well, this is a bit annoying as a function can't be avoided with "\".

But there is always /bin/ls :)

-giorgos

Re: few questions

[Vincent Lefevre]

On Fri, Nov 23, 2001 at 12:03:03 +0200, Giorgos Keramidas wrote:
> But there is always /bin/ls :)

No, the unbroken ls isn't always in /bin, and its path may be a bit
too long to type. :)

-- 
Vincent Lefèvre <vincent@vinc17.org> - Web: <http://www.vinc17.org/> - 100%
validated HTML - Acorn Risc PC, Yellow Pig 17, Championnat International des
Jeux Mathématiques et Logiques, TETRHEX, etc.
Work: CR INRIA - computer arithmetic / SPACES project at LORIA