|
|
Sponsored Content
Top Forums
Shell Programming and Scripting
grep backreferencing question
Post 302464297 by DGPickett on Tuesday 19th of October 2010 05:01:33 PM
10-19-2010
That statement may be true, but is worthless out of school. 
|
|
10 More Discussions You Might Find Interesting
1. UNIX for Dummies Questions & Answers
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. Shell Programming and Scripting
Hi,
I am currently using grep -c to scan lines for certain data. I am just wondering if you can search a specific column of a file using grep -c.
Thanks (6 Replies)
Discussion started by: Jaken
6 Replies
3. Shell Programming and Scripting
I'm using grep in a shell and I was wondering:
Can I grep a file and then delete all files that contain what it returns?
So instead of grep 'blah' * and I have 50 files that have blah in it and I would have to delete all 50 manually, how would I just delete them all in one fell swoop? (3 Replies)
Discussion started by: tphegley
3 Replies
4. UNIX for Dummies Questions & Answers
Hi,
I am executing the below command.
grep ".UPDATE" file1.txt | grep -v MQQUEUE > Myprog1
The expected output is all lines in file1.txt which have the string ".UPDATE" and dont contain the string MQQUEUE.
However, the output which I am getting is just searching for the string... (3 Replies)
Discussion started by: saurabhsinha23
3 Replies
5. Programming
My SQL is very rust and I'm having a problem with a query.
First, here are the tables involved.
Table `os`:
+--------------------------------+
| id | distro | version |
+--------------------------------+
| 1 | CentOS | 5.2 |
| 2 | RHEL | 5 |
| 3 ... (1 Reply)
Discussion started by: Housni
1 Replies
6. UNIX for Dummies Questions & Answers
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
7. Shell Programming and Scripting
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
8. Shell Programming and Scripting
All,
I am wanting to find out if I can do this in one grep statement
grep -R failed * |grep -iEw 'Mar 1|Feb 2'
I want to search all files in a directory for the text "failed" AND a "date or date".
Currently, I am using the above running one grep and then piping it to another. It works,... (3 Replies)
Discussion started by: markdjones82
3 Replies
9. Shell Programming and Scripting
can anyone tell me what the \/$ means? from
grep \/$ (8 Replies)
Discussion started by: Nick1097
8 Replies
10. Shell Programming and Scripting
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
LEARN ABOUT OPENDARWIN
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 is used to invoke the grep on compress'ed or gzip'ed files. All options specified are passed directly to grep. If no file is speci- fied, 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 zgrep is invoked as zegrep or zfgrep then egrep or fgrep is used instead of grep. If the GREP environment variable is set, zgrep uses it as the grep program to be invoked. For example: for sh: GREP=fgrep zgrep string files for csh: (setenv GREP fgrep; zgrep string files) AUTHOR
Charles Levert (charles@comm.polymtl.ca) SEE ALSO
grep(1), egrep(1), fgrep(1), zdiff(1), zmore(1), znew(1), zforce(1), gzip(1), gzexe(1) ZGREP(1)