Date: Thu, 17 Aug 2006 13:20:29 GMT From: Maxim Konovalov <maxim@macomnet.ru> To: freebsd-bugs@FreeBSD.org Subject: Re: bin/102184: the -n switch of the test command does not work Message-ID: <200608171320.k7HDKTN9009822@freefall.freebsd.org>
next in thread | raw e-mail | index | archive | help
The following reply was made to PR bin/102184; it has been noted by GNATS.
From: Maxim Konovalov <maxim@macomnet.ru>
To: Florian Meister <florian.meister@medienhaus.at>
Cc: bug-followup@freebsd.org
Subject: Re: bin/102184: the -n switch of the test command does not work
Date: Thu, 17 Aug 2006 17:19:08 +0400 (MSD)
On Thu, 17 Aug 2006, 15:07+0200, Florian Meister wrote:
> maybe a shell problem - what shell do you use ?
/bin/sh
> when I do the following I can also reproduce the error:
>
> --snip--
> tpextu02# set testvar="lala"; [ -f $lala ]; echo $?
> 1
> tpextu02# set testvar="" ; [ -f $lala ] ; echo $?
> 1
> tpextu02# [ -f "lala" ] ; echo $?
> 1
> tpextu02# [ -f "" ] ; echo $?
> 1
I see no problems in the tests above.
-f file True if file exists and is a regular file.
But I don't undestand how it correlates with the -n flag. Could you
elaborate?
> bye, florian
>
> Maxim Konovalov wrote:
> > Hi Florian,
> >
> > [...]
> > > > Description:
> > > test -n does not work. I always get a return code of zero, no
> > > matter if the variable has zero or more characters. I
> > > crosschecked it with the -z switch. This switch works with the
> > > same test-script.
> >
> > Works for me:
> >
> > $ /bin/test -n "aa"; echo $?
> > 0
> > $ /bin/test -n ""; echo $?
> > 1
> > $ export n="aa"; /bin/test -n "$n"; echo $?
> > 0
> > $ export n=""; /bin/test -n "$n"; echo $?
> > 1
> >
> > > > How-To-Repeat:
> > > sample shell script:
> > > --snip--
> > > jail_interface="lala"
> > > if [ -n ${jail_interface} ]; then
> > > echo "interface: -$jail_interface-"
> > > fi
> > > --snap--
> > >
> > > try to replace the variable jail_interface with nothing - same
> > > result. If you replace -n with -z you get the expected results.
> >
>
>
--
Maxim Konovalov
Want to link to this message? Use this URL: <https://mail-archive.FreeBSD.org/cgi/mid.cgi?200608171320.k7HDKTN9009822>