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Full Discussion: Creating variables dynamically and using it in script?
Top Forums Shell Programming and Scripting Creating variables dynamically and using it in script? Post 302565386 by davidtd on Monday 17th of October 2011 06:08:55 PM
Old 10-17-2011
Java Creating variables dynamically and using it in script?
Hi,

I have a problem that I am trying to solve and would greatly appreciate some input to solve this. I have a file containing variable length of line. Each line in the file has values separated by "," and i need to grep for these values in a some files. For example below is a sample file with 3 lines:

Code:
file1:a,b,c,d
file2:e,f
file3:g,h,i,j,k,l

I have gone pass to read this file line by line but how do i pass each value separated by "," to variable and use it in a grep command.

So basically i need to dynamically generate variables and pass it to grep command for further processing like:
Code:
for a,b,c
grep "$var" file1

for e,f
grep "$var" file2

for g,h,i,j,k,l
grep "$var" file3

Any help on this would be greatly appreciated. Can we use Arrays?

Thanks in advance.
Last edited by zxmaus; 10-18-2011 at 03:19 AM.. Reason: added code tags
 

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LEARN ABOUT BSD

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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