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Full Discussion: substr issue
Top Forums Shell Programming and Scripting substr issue Post 302450062 by dipeshvshah on Wednesday 1st of September 2010 12:06:19 PM
Old 09-01-2010
substr issue
Hi

I have a script:
Code:
 
ls -l | grep "$TDATE" | awk '{print $NF}' > todays_files.txt
for run in $(cat todays_files.txt)
do
 SSTR='expr substr "$run" 1 5'
 echo "$SSTR"
done

I want 1 to 5 chars of each files.

It returns instead for all files.

Code:
'expr substr "$run" 1 5'


Could someone help me to fix the issue?

Thanks
 

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zgrep

ZGREP(1)						      General Commands Manual							  ZGREP(1)

NAME

       zgrep - search possibly compressed files for a regular expression

SYNOPSIS

       zgrep [ grep_options ] [ -e ] pattern filename...

DESCRIPTION

       Zgrep  invokes  grep  on  compressed  or  gzipped  files.   These  grep	options  will  cause  zgrep  to  terminate  with  an  error  code:
       (-[drRzZ]|--di*|--exc*|--inc*|--rec*|--nu*).  All other options specified are passed directly to grep.  If no file is specified,  then  the
       standard input is decompressed if necessary and fed to grep.  Otherwise the given files are uncompressed if necessary and fed to grep.

       If the GREP environment variable is set, zgrep uses it as the grep program to be invoked.

EXIT CODE

       2 - An option that is not supported was specified.

AUTHOR

       Charles Levert (charles@comm.polymtl.ca)

SEE ALSO

       grep(1), gzexe(1), gzip(1), zdiff(1), zforce(1), zmore(1), znew(1)

																	  ZGREP(1)
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