trying a fix to your code I came up with the following:
Code:
#!/bin/sh
result=`cat file | tr '011' ' '| cut -f 2 -d' '`
for x in $result
do
if [ $x -gt 1 ]
then
grep " $x" file
fi
done
I got rid of the 'exit' as you won't process anything after a value that is less than or equal to 1 otherwise. I added the name of the file to the 'grep' command so it knew where to search for the match, and I added a 'tr' command to change the tab to a space and then cut get's a '-d' switch to separate the fields on that space.
This assumes you have only one tab separating the columns of data, and seems to work for me.
However, I would rewrite it like the following, so as to process this with one step inside a loop:
Code:
#!/bin/sh
while read c1 c2
do
if [ $c2 -gt 1 ]
then
printf "%s\t%s\n" $c1 $c2
fi
done < file
Using a while loop to loop through the file, the read command separates the output into two variables. Test the second variable, and if the criteria is met, just reconstruct the known format of the file with a printf statement, rather than greping the original file.
Caveat: I don't have access to 'bash' but I do have access to a bourne shell, so I used that. Probably shouldn't make a difference in this code.
Last edited by rwuerth; 09-15-2009 at 11:35 AM..
Reason: correct some blatant spelling errors
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-------- ----------
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Discussion started by: richs24
13 Replies
LEARN ABOUT ULTRIX
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)