[CentOS] bash file direct execution
BRUCE STANLEY
bruce.stanley at prodigy.net
Tue Aug 2 01:26:24 UTC 2005
--- dan1 <dan1 at edenpics.com> wrote:
> >> This script is the following:
> >>
> >> #!bin/sh
> >> CURRENT_IP=`/sbin/ifconfig eth0 | grep inet | cut -d : -f 2 | cut -d
> >> -f
> >> 1`
> >> export CURRENT_IP
> >> echo $CURRENT_IP
> >>
> >
> >You need to change the first line to #!/bin/sh
> >
> >Otherwise, the script is looking for a bin directory in whatever current
> >directory you are in. Unless you are at the root of the filesystem, it most
> >likely won't be found.
> >
> >Matt
>
>
> Hello, Matt.
>
> Sorry for that. Yes you are right it is a mistake. However this was only on
> this script. The problem I described before still remains the same for the
> other scripts and even on this one once I have corrected it to #!/bin/sh.
>
> There is simply no output at all for those scripts and no error message
> neither. And it's also strange that it works when put in the /root directory
> and not in the /. The /root is on the same filesystem than / and I have
> verified in the /etc/fstab : the / is mounted with the options:
> defaults,usrquota,grquota. The 'noexec' option is not set.
>
> Any other idea ?
>
> Thanks,
> Daniel
>
>
Hi Dan!
The '/bin/sh' command is usually a symbolic link to '/bin/bash'.
Check this by ls -l /bin/sh (should show it pointing to bash).
Maybe the link has gotton broken some how.
Change the '#!/bin/sh' in the scripts to '#!/bin/bash' and see if
they then execute ok.
If so, as root, 'rm /bin/sh' , followed by 'ln -s /bin/bash /bin/sh'
to fix the link.
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