I don't think so, generally. grep is not intended nor designed to replace or remove patterns or partial strings. Be aware that sed has similar powerful matching algorithms as grep has.
In your special case, a (deprecated) pipe of three greps could do the job:
Hi all,
Still a newbie and learning as I go ... as you do :)
Have created this script to report on disc usage and I've just included the ChkSpace function this morning.
It's the first time I've read a file (line-by-bloody-line) and would like to know if I can improve this script ?
FYI - I... (11 Replies)
Hi ,
i'm searching for files over many Aix servers with rsh command using this request :
find /dir1 -name '*.' -exec ls {} \;
and then count them with "wc"
but i would improve this search because it's too long and replace directly find with ls command but "ls *. " doesn't work.
and... (3 Replies)
Wrote this script to find the date x days before or after today. Is there any way that this script can be speeded up or otherwise improved?
#!/usr/bin/sh
check_done() {
if
then
daysofmth=31
elif
then
if
... (11 Replies)
hi someone tell me which ways i can improve disk I/O and system process performance.kindly refer some commands so i can do it on my test machine.thanks, Mazhar (2 Replies)
I have a data file of 2 gig
I need to do all these, but its taking hours, any where i can improve performance, thanks a lot
#!/usr/bin/ksh
echo TIMESTAMP="$(date +'_%y-%m-%d.%H-%M-%S')"
function showHelp {
cat << EOF >&2
syntax extreme.sh FILENAME
Specify filename to parse
EOF... (3 Replies)
I have a 10Gbps network link connecting two machines A and B. I want to transfer 20GB data from A to B using TCP. With default setting, I can use 50% bandwidth. How to improve the throughput? Is there any way to make throughput as close to 10Gbps as possible? thanks~ :) (3 Replies)
Hi All,
I have written a script as follows which is taking lot of time in executing/searching only 3500 records taken as input from one file in log file of 12 GB Approximately.
Working of script is read the csv file as an input having 2 arguments which are transaction_id,mobile_number and search... (6 Replies)
I just wrote a very small script that improves readability on system sulog. The problem with all sulog is there is lack of clarity whether the info you are looking at is the most current. So if you just need a simple soution instead of going thru the trouble of writing a script that rotate logs and... (0 Replies)
Gents.
I have 2 different scripts for the same purpose:
raw2csv_1
Script raw2csv_1 finish the process in less that 1 minute
raw2csv_2
Script raw2csv_2 finish the process in more that 6 minutes.
Can you please check if there is any option to improve the raw2csv_2. To finish the job... (4 Replies)
Gents,
Is there the possibility to improve this script to be able to have same output information.
I did this script, but I believe there is a very short code to get same output
here my script
awk -F, '{if($10>0 && $10<=15) print $6}' tmp1 | sort -k1n | awk '{a++} END { for (n in a )... (23 Replies)
Discussion started by: jiam912
23 Replies
LEARN ABOUT NETBSD
zgrep
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