Question

Unix ls --- No such file or directory

Asked by: tomerps

I need to capture the condition when jversion returns No such file or directory... ..

jversion=`ls -1td /sbcimp/run/tp/sun/jre/*-64bit* | head -1 | cut -d'/' -f7 | sed 's/v//' | tr -s " " | sed 's/^[ ]//g'`
 
if [????] 
else
fi

                                  
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Asked On
2009-02-19 at 08:38:37ID24158667
Tags

Unix

,

Ls

Topics

SCO Unix

,

GNU HURD Unix

,

Unix Operating Systems

Participating Experts
2
Points
250
Comments
10

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Answers

 

by: ozoPosted on 2009-02-20 at 00:55:29ID: 23690048

is No such file or directory returned in $jversion? or is $jversion blank when ls -1td /sbcimp/run/tp/sun/jre/*-64bit*  prints No such file or directory on stderr?

 

by: tomerpsPosted on 2009-02-20 at 00:59:04ID: 23690073

Hi ozo, thanks for asking...it is done now. i captured the condition with followig code

if [ "$jversion"  = "No match" ] || [ "$jversion" = "0" ] || [ "$jversion" = "" ]
then
....


 

by: ozoPosted on 2009-02-20 at 01:00:42ID: 23690083

you can make the ls -1td /sbcimp/run/tp/sun/jre/*-64bit* send the No such file or directory error down the pipe to $jversion with ls -1td /sbcimp/run/tp/sun/jre/*-64bit* 2>&1

or you can test for $jversion being blank with
if [ ! $jversionjversion ] ; then
   echo No such file or directory
else
   echo $jversionjversion
fi

 

by: mikelfritzPosted on 2009-02-21 at 13:42:15ID: 23701956

I think ozo answered and should be rewarded to some degree.

 

by: mikelfritzPosted on 2009-02-21 at 15:11:36ID: 23702455

agreed

 

by: tomerpsPosted on 2009-02-24 at 09:06:07ID: 23723652

n/a

 

by: mikelfritzPosted on 2009-02-24 at 17:39:54ID: 23729338

Do as you like.  I was not involved until the end - on points and fairness only.  I think ozo's answer is perectly valid and shows how the pipes work; beyond that he/she deserves some credit.



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