From: Phil Pennock <zsh-workers+phil.pennock@spodhuis.org>
To: TJ Luoma <luomat@gmail.com>
Cc: Zsh Users <zsh-users@zsh.org>
Subject: Re: how to refer to basename of $0
Date: Thu, 28 Jul 2011 20:24:02 -0400 [thread overview]
Message-ID: <20110729002402.GA41738@redoubt.spodhuis.org> (raw)
In-Reply-To: <CADjGqHuKhx9A3HCUBjU4JgRsbj52s7DQ6HGewT=Y9uRMDGD-fg@mail.gmail.com>
On 2011-07-28 at 18:55 -0400, TJ Luoma wrote:
> the script "foo.sh" read .source like this:
>
> . $HOME/.source
>
> and then I did
>
> echo "$NAME"
>
> it would give me
>
> foo.sh
>
> but in zsh I get
>
> zsh
Are you sure?
% cat -v foo
. $HOME/bar
% cat -v bar
echo $0
% zsh -f foo
/home/me/bar
% bash foo
foo
The point is that in bash, sourcing a script does not change $0 while in
zsh it does by default, because FUNCTION_ARGZERO is set.
% cat -v foo2
unsetopt function_argzero
. $HOME/bar
% zsh -f foo2
foo2
If you want to be portable to both bash and zsh, then:
[[ -n $ZSH_VERSION ]] && unsetopt function_argzero
This does, unfortunately, have to be done in the script which does the
including, so you can't have a common library used by both shells which
assumes that $0 is the name of the original file and which can just be
simply included.
-Phil
next prev parent reply other threads:[~2011-07-29 0:39 UTC|newest]
Thread overview: 14+ messages / expand[flat|nested] mbox.gz Atom feed top
2011-07-28 22:55 TJ Luoma
2011-07-28 23:54 ` Tomasz Moskal
2011-07-29 0:24 ` Phil Pennock [this message]
2011-07-29 1:30 ` Tomasz Moskal
2011-07-29 0:44 ` Benjamin R. Haskell
2011-07-29 1:39 ` TJ Luoma
2011-07-29 2:06 ` Tomasz Moskal
2011-07-29 4:04 ` Bart Schaefer
2011-07-29 4:50 ` TJ Luoma
2011-07-29 11:48 ` Tomasz Moskal
2011-07-29 14:08 ` Benjamin R. Haskell
2011-07-29 22:30 ` Bart Schaefer
2011-07-30 19:43 ` Greg Klanderman
2011-07-29 3:05 ` TJ Luoma
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