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From: Kurtis Rader <krader@skepticism.us>
To: John <da_audiophile@yahoo.com>
Cc: "zsh-users@zsh.org" <zsh-users@zsh.org>
Subject: Re: zsh will not run scripts as /bin/bash even with #!/bin/bash as the first line
Date: Sat, 24 Nov 2012 18:42:06 -0800	[thread overview]
Message-ID: <CABx2=D-vMx-ymPp67Mb2TVAQd=a48OoGs=kAmaEYFDNstAJpBg@mail.gmail.com> (raw)
In-Reply-To: <1353805621.95002.YahooMailNeo@web140001.mail.bf1.yahoo.com>

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The shell, whether zsh or bash, does not pay any attention to the shebang
line. That is done by the operating system kernel. That is, when you
execute a shell script the OS notices that the file is a plain text file
with a "#!" signature and launches the named program to interpret its
contents.

You cannot reasonably expect exported functions to work across different
shells. Put the function in a script file and reference that as your
argument to the parallel command.

On Sat, Nov 24, 2012 at 5:07 PM, John <da_audiophile@yahoo.com> wrote:

> Been using zsh for a while now and loving it.  I ran into a problem today.
>  The following script errors out if run with zsh as my default shell:
>
> #!/bin/bash
> v_build() {
>
> echo "The file is $1"
> }
>
> export -f v_build
> find . -maxdepth 1 -type f | parallel v_build
>
> Output:
> % ./test
> zsh:1: command not found: v_build
> zsh:1: command not found: v_build
> zsh:1: command not found: v_build
> zsh:1: command not found: v_build
>
> If I switch to a user who has bash as its default shell, the same script
> runs just fine:
>
> $ ./test
> The file is ./test
> The file is ./01.jpg
> The file is ./02.jpg
> The file is ./03.jpg
>
> Love to understand what I have incorrectly configured.  It seems like zsh
> is ignoring the shebang telling it to use /bin/bash as the shell to run the
> script.
>



-- 
Kurtis Rader
Caretake of the exceptional canines Junior and Chino

      parent reply	other threads:[~2012-11-25  6:56 UTC|newest]

Thread overview: 6+ messages / expand[flat|nested]  mbox.gz  Atom feed  top
2012-11-25  1:07 John
2012-11-25  2:41 ` Yichao Yu
2012-11-25  4:22   ` John
2012-11-25  5:05     ` Bart Schaefer
2012-11-25 15:09       ` John
2012-11-25  2:42 ` Kurtis Rader [this message]

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