Login or Register to Ask a Question and Join Our Community

Sponsored Content
Full Discussion: help with grep regexp
Top Forums Shell Programming and Scripting help with grep regexp Post 302496122 by jwinsk on Saturday 12th of February 2011 10:31:25 AM
Old 02-12-2011
Quote:
Originally Posted by scottn
Code:
$ grep -v "|," input.txt

Thanks scott. In java regexps, the | means OR and has to be escaped, so I had assumed it has to be escaped in grep regexps too. It seems that's not the case. I had tried something similar with grep -v as well, but I was escaping the pipe. This works great. Thanks again.
 

10 More Discussions You Might Find Interesting

1. UNIX for Advanced & Expert Users

regexp

Hi guys, does anyone know how to test for a regular expression - i want to include it in a script to make sure the variable is a regexp cheers (1 Reply)
Discussion started by: penfold
1 Replies

2. UNIX for Dummies Questions & Answers

grep using regexp

I have 2 files called stuff-egress-filter and stuff-ingress filter. There are also files called something like stuff-egress-F/0 I want to match the first two... I tried (i realize there is no filename... I'm piping this from the ls command) grep stuff-*-filter Finds nothing. If I... (18 Replies)
Discussion started by: earnstaf
18 Replies

3. Shell Programming and Scripting

Help with regexp

Hi there! I would like to know how to find and replace all numbers in a *.html file and make them bold. Any help will be appreciated! :) (7 Replies)
Discussion started by: agasamapetilon
7 Replies

4. Shell Programming and Scripting

Passing a regexp to grep via a shell script

Hello, I have the output of ls -l stored in a text file called "files.txt". -rwx------ 1 user1 dev 130 Sep 21 16:14 sc1.sh -rwxr----- 1 user1 dev 10328 Sep 29 20:11 sc10.sh -rwxr----- 1 user1 dev 9984 Sep 30 15:33 sc11.sh -rwxr----- 1 user1 dev ... (2 Replies)
Discussion started by: rogersed
2 Replies

5. UNIX for Dummies Questions & Answers

print the line immediately after a regexp; but regexp is a sentence

Good Day, Im new to scripting especially awk and sed. I just would like to ask help from you guys about a sed command that prints the line immediately after a regexp, but not the line containing the regexp. sed -n '/regexp/{n;p;}' filename What if my regexp is 3 word or a sentence. Im... (3 Replies)
Discussion started by: ownins
3 Replies

6. UNIX for Dummies Questions & Answers

Grep Regexp not working correctly

Consider the following code: grep -o -e '^STEAM_::\d+$' workfile3.tmp A sample format of a valid string for the regexp would be: STEAM_0:1:12345678 Here is an example line from the workfile3.tmp file: 465:L 01/02/2012 - 00:05:33: "Spartan1-1-7<8><STEAM_0:1:47539638><>" connected No... (2 Replies)
Discussion started by: spinner0205
2 Replies

7. Shell Programming and Scripting

A help in regexp and grep

I have test string value , something like the one below str='KUAMRJIT|GHOSH' If I type echo $str | grep -o -e '\|+' it doesnt give me anything . But on the contrary echo $str | grep -o -e '|' display the only one pipe character(|) thats there in the string above . The way I understood Unix... (8 Replies)
Discussion started by: kumarjt
8 Replies

8. Shell Programming and Scripting

Filter non-alpha character with grep/regexp

Hi all, I am trying to filter out those lines that contain a "non-alpha" character. An example of my input is the following: zygnematales grb zygocactus grb zygocactus_truncatus plt zygodactyl_foot prt zygoma prt zygomatic prt zygomatic_arch prt zygomatic_bone ... (2 Replies)
Discussion started by: owwow14
2 Replies

9. Shell Programming and Scripting

Regexp

I would like to extract "1333 Fairlane" given the below text. The word "Building:" is always present. The wording between Building and the beginning of the address can be almost anything. It appears the the hyphen is there most of the time. Campus: Fairlane Business Park Building:... (9 Replies)
Discussion started by: bbaker@copesan.
9 Replies

10. What is on Your Mind?

A Regexp You Can Use Everywhere

¯\_(ツ)_/¯ bakunin (0 Replies)
Discussion started by: bakunin
0 Replies

LEARN ABOUT LINUX

xzegrep

XZGREP(1)							     XZ Utils								 XZGREP(1)

NAME

       xzgrep - search compressed files for a regular expression

SYNOPSIS

       xzgrep [grep_options] [-e] pattern file...
       xzegrep ...
       xzfgrep ...
       lzgrep ...
       lzegrep ...
       lzfgrep ...

DESCRIPTION

       xzgrep  invokes	grep(1)  on  files  which may be either uncompressed or compressed with xz(1), lzma(1), gzip(1), or bzip2(1).  All options
       specified are passed directly to grep(1).

       If no file is specified, then standard input is decompressed if necessary and fed to grep(1).  When reading from  standard  input,  gzip(1)
       and bzip2(1) compressed files are not supported.

       If  xzgrep  is  invoked as xzegrep or xzfgrep then egrep(1) or fgrep(1) is used instead of grep(1).  The same applies to names lzgrep, lze-
       grep, and lzfgrep, which are provided for backward compatibility with LZMA Utils.

ENVIRONMENT

       GREP   If the GREP environment variable is set, xzgrep uses it instead of grep(1), egrep(1), or fgrep(1).

SEE ALSO

       grep(1), xz(1), gzip(1), bzip2(1), zgrep(1)

Tukaani 							    2010-09-27								 XZGREP(1)
All times are GMT -4. The time now is 08:31 PM.
Unix & Linux Forums Content Copyright 1993-2022. All Rights Reserved.
Privacy Policy