01-27-2013
Many thanks for the explanation.
The size of the pattern file has increased but awk seems to respond pretty well. To speed up the process, I converted all Unicode to 8 bit and got a fair amount of speed in computation.
Thanks a lot.
---------- Post updated at 11:45 PM ---------- Previous update was at 11:13 AM ----------
Sorry to hassle again. I got the logic, but I have two queries:
A simple one:suppose I wanted to print all the data found on one line instead of on separate lines, what would I have to tweak ? I tried tweaking the print command but could not get the script to print all words on one line.
More complex. My pattern file has gone huge. I am testing 4 letter combos which means around 64000 strings to match. When I run the file against around a similar size of inputs, the script executes but does not give the expected result.
Any solutions. I am quite desperate to solve this issue. Many thanks in advance but with my limited knowledge of AWK and the reading I am doing from OReilley's book on sed and awk, things do not seem to work out.
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LEARN ABOUT NETBSD
zfgrep
ZGREP(1) BSD General Commands Manual ZGREP(1)
NAME
zgrep, zegrep, zfgrep -- print lines matching a pattern in gzip-compressed files
SYNOPSIS
zgrep [grep-flags] [--] pattern [files ...]
zegrep [grep-flags] [--] pattern [file ...]
zfgrep [grep-flags] [--] pattern [file ...]
DESCRIPTION
zgrep runs grep(1) on files or stdin, if no files argument is given, after decompressing them with zcat(1).
The grep-flags and pattern arguments are passed on to grep(1). If an -e flag is found in the grep-flags, zgrep will not look for a pattern
argument.
zegrep calls egrep(1), while zfgrep calls fgrep(1).
EXIT STATUS
In case of missing arguments or missing pattern, 1 will be returned, otherwise 0.
SEE ALSO
egrep(1), fgrep(1), grep(1), gzip(1), zcat(1)
AUTHORS
Thomas Klausner <wiz@NetBSD.org>
BSD
December 28, 2003 BSD