[Mark Greene]

What keyboard does the OS think you have?

 mark


On Thu, Jul 24, 2008 at 12:09 PM, John Abreau <jabr at blu.org> wrote:

> I've got a server that's been giving strange errors lately. Most
> noticeably, when I login,
> I get several errors of the form
>
>    -bash: [: =: unary operator expected
>
> I've traced these to files under /etc/profile.d, and on further
> testing I find that the
> offending lines are using backquotes, e.g.
>
>        if [ `/usr/bin/id -u` = 0 ] ; then
>
> When I try to use backquotes on the command line on this server, I get
> no output.
> Even stranger, if I have a suspended vi job, then running something in
> backquotes
> terminates the vi process:
>
>    $ vi foo
>    ^Z
>    [1]+  Stopped                 nvi foo
>    $ echo `echo bar`
>
>    [1]+  Terminated              nvi foo
>
> If I do this on my other systems, I get
>
>    $ echo `echo bar`
>    bar
>
> and the vi job does not terminate.
>
> I've tried googling for these symptoms, but so far I haven't found a match.
> Has anyone else run across this odd behavior? What could be causing it?
>
> The server with the broken behavior is running CentOS release 5.2,
> and bash is bash-3.2-21.el5.
>
>
> --
> John Abreau / Executive Director, Boston Linux & Unix
> IM: jabr at jabber.blu.org / abreauj at AIM / abreauj at Yahoo / zusa_it_mgr at Skype
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