Sponsored Content
Full Discussion: Another grep question
Top Forums UNIX for Dummies Questions & Answers Another grep question Post 302094337 by blowtorch on Thursday 26th of October 2006 08:56:38 PM
Old 10-26-2006
That won't work anywhere else. You will have to probably use a combo of 'grep -n' and then sed to print the lines before your match. You end up scanning the input file too many times which makes it quite slow.
 

10 More Discussions You Might Find Interesting

1. UNIX for Dummies Questions & Answers

grep question

what is the format for grep if I want to search from the current directory and through all its subdirectories?:) (3 Replies)
Discussion started by: pkappaz
3 Replies

2. UNIX for Dummies Questions & Answers

Grep Question

Hello Everybody, I have files; yyyymmdd.log which the data look like this; "Txid=9426043&MsgTxt=Thankyou&UserId=john&Password=jh2501" "Txid=9426150&MsgTxt=Thankyou&UserId=john&Password=jh2501" . . . "Txid=9426200&MsgTxt=Thankyou&UserId=john&Password=jh2501" Question 1: How to... (3 Replies)
Discussion started by: nazri76
3 Replies

3. Shell Programming and Scripting

grep question

hello people, All my servers have 4 mounts with this norme. For example, if my hostname is siroe. df -h | grep `hostname` /dev/dsk/c1t3d0s6 404G 399G 800M 100% /siroe3 /dev/dsk/c1t2d0s6 404G 399G 800M 100% /siroe2 /dev/md/dsk/d6 20G 812M 19G ... (3 Replies)
Discussion started by: melanie_pfefer
3 Replies

4. UNIX for Dummies Questions & Answers

grep question

Instead of using the following command #dmesg | grep -v sendmail | grep -v xntpd How can I use just one grep -v and give both arguments. Please suggest thanks (4 Replies)
Discussion started by: Tirmazi
4 Replies

5. Shell Programming and Scripting

grep question

Hello, Is there a way in grep to remember patterns? For eg: int a,b,c,d,a; If a variable is declared twice, like in the previous example, I should be able to print only those lines. Is there a way to print only the lines where the variable name occurs more than once, using grep... (1 Reply)
Discussion started by: prasanna1157
1 Replies

6. Shell Programming and Scripting

grep question please

i have files with "DOMAINSOLVER ACMS" with any number of spaces in between the two words on its own line and i can find it with the following: grep -c "DOMAINSOLVER* ACMS" $FILENAMEbut i need to exclude any lines matching: "$DOMAINSOLVER". i've tried a variety of quoting and escaping with no luck.... (4 Replies)
Discussion started by: crimso
4 Replies

7. Shell Programming and Scripting

Question about grep

can anyone tell me what the \/$ means? from grep \/$ (8 Replies)
Discussion started by: Nick1097
8 Replies

8. Shell Programming and Scripting

Question about grep

is there anyway i can ask grep to only get the first line? as in the top command line line 1 <-- just grep this line line 2 line 3 ---------- Post updated at 04:24 PM ---------- Previous update was at 04:19 PM ---------- nvm.. found out that i can do it with |head (12 Replies)
Discussion started by: Nick1097
12 Replies

9. UNIX for Dummies Questions & Answers

Question on grep

Hello all, I'm trying to grep the string "scott" from all files whose names are like srvr*.log and that were created "Nov 15"...I'm trying the following command but throws an error message...seems like the syntax is incorrect.. grep scott < ls -l srvr*.log|grep "Nov 15" Thanks for your... (9 Replies)
Discussion started by: luft
9 Replies

10. UNIX for Dummies Questions & Answers

Grep Question

My grep returns a row of data like this: 75=20130130;60=074338;61=985;511=55473883;452=115439;62=196;267=1; Is there a way for the grep to only return 60="something" and 511="something" ? Thanks in advance. (10 Replies)
Discussion started by: Carl2013
10 Replies
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
All times are GMT -4. The time now is 07:49 PM.
Unix & Linux Forums Content Copyright 1993-2022. All Rights Reserved.
Privacy Policy