From: David Newall <davidn@davidnewall.com>
To: Valery Reznic <valery_reznic@yahoo.com>
Cc: linux-kernel@vger.kernel.org
Subject: Re: execve for script don't return ENOEXEC, bug ?
Date: Sat, 20 Mar 2010 20:11:56 +1030 [thread overview]
Message-ID: <4BA49864.7080503@davidnewall.com> (raw)
In-Reply-To: <687582.96058.qm@web110305.mail.gq1.yahoo.com>
Valery Reznic wrote:
> [valery@localhost ~]$ cat a.sh
> #!/bin/sh
> echo "It's a.sh"
> [valery@localhost ~]$ cat b.sh
> #! ./a.sh
> echo "It's b.sh"
> [valery@localhost ~]$
> [valery@localhost ~]$ strace -f -e execve setarch i386 ./b.sh
> execve("/usr/bin/setarch", ["setarch", "i386", "./b.sh"], [/* 40 vars */]) = 0
> execve("./b.sh", ["./b.sh"], [/* 40 vars */]) = 0
> It's a.sh
>
That is the correct output for a script which is being interpreted by
a.sh, when a.sh prints "It's a.sh" using /bin/sh as its interpreter.
Remember, you didn't ask /bin/sh to interpret b.sh, you asked a.sh to do
it, and a.sh is a simple echo statement, not an interpreter. There is
no error here.
next prev parent reply other threads:[~2010-03-20 9:42 UTC|newest]
Thread overview: 9+ messages / expand[flat|nested] mbox.gz Atom feed top
2010-03-11 10:56 execve for script don't return ENOEXEC, bug ? Valery Reznic
2010-03-19 21:07 ` Andrew Morton
2010-03-20 0:37 ` David Newall
2010-03-20 6:42 ` Valery Reznic
2010-03-20 9:41 ` David Newall [this message]
2010-03-20 12:56 ` Valery Reznic
2010-03-20 17:57 ` David Newall
2010-03-21 8:33 ` Valery Reznic
2010-03-21 19:16 ` Johannes Stezenbach
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