Visit Our UNIX and Linux User Community

Full Discussion: grep regex problem
Top Forums Shell Programming and Scripting grep regex problem Post 61613 by iceman on Sunday 6th of February 2005 07:40:17 AM
Old 02-06-2005
grep regex problem

Hi,

I am trying to do something with grep, but for some reason I just can't get it to to work.

I am looking for find a match in the second field, the length must be 10 characters and end with 'abc'.

The file is in this format:
<int><tab><field2>

I've tried a few patterns, some work, but they never work exactly how I expect them to.

This pattern: grep -i '[\t]\(.\)\{7\}abc$'

For some reason matches any lines where field 2 begins with the letter 't', the same goes for any letter used, [\s] doesn't match whitespaces either.

Thanks.
iceman
 
Test Your Knowledge in Computers #862
Difficulty: Medium
Vue uses an HTML-based template syntax that allows binding the rendered DOM to the underlying Vue instance's data.
True or False?

10 More Discussions You Might Find Interesting

1. UNIX for Dummies Questions & Answers

use of regex on grep

having a look on the regex site I saw that characters can be search using hex values http://www.regular-expressions.info/characters.html So I try to use it whith grep to find a on a string (octal Decimal Hexa : 350 232 E8) but it doesn't work E.g. /usr/bin/echo '\0350' | egrep '\xE8' ... (0 Replies)
Discussion started by: solea
0 Replies

2. UNIX for Dummies Questions & Answers

grep with Regex help!

Hello everybody, I'd like to know how is it I should write a regex in unix to match a string not followed by another string (anywhere in the line). To be more specific, I want to find lines where "drop table" is found, but not followed anywhere in the line by the character "&". For... (3 Replies)
Discussion started by: mvalonso
3 Replies

3. UNIX for Dummies Questions & Answers

Help with grep and regex

Hi all, I'm a beginner with linux, regex, grep, etc I am trying to get data out of a file that has about 13,000 lines in this format name - location I want to grep all the names out to one file and the locations to another so I can put them into a spreadsheet. Some have hyphenated... (14 Replies)
Discussion started by: raichlea
14 Replies

4. Shell Programming and Scripting

grep and regex question

basically i have a csv i parse through. a user will supply me with a san switch he/she wants more info about... say the name is "pnj-sansw124" now i can grep out every connection to that switch w/o issue because this sans switch pnj-sansw124 has multiple slots 1-10. and it looks like this in the... (5 Replies)
Discussion started by: pupp
5 Replies

5. Shell Programming and Scripting

regex and grep

I want it to find lines that contain any number of capital letters before P this is what I have tried echo "AAAAAP" | grep 'P' echo "AAAAAP" | grep '\{1\}P' echo "AAAAAP" | grep '^*P' But none of them seem to work, any help is much appreciated thanks Calypso (4 Replies)
Discussion started by: Calypso
4 Replies

6. UNIX for Dummies Questions & Answers

| help | unix | grep (GNU grep) 2.5.1 | advanced regex syntax

Hello, I'm working on unix with grep (GNU grep) 2.5.1. I'm going through some of the newer regex syntax using Regular Expression Reference - Advanced Syntax a guide. ls -aLl /bin | grep "\(x\)" Which works, just highlights 'x' where ever, when ever. I'm trying to to get (?:) to work but... (4 Replies)
Discussion started by: MykC
4 Replies

7. Shell Programming and Scripting

grep -v and regex

How to match lines that don't contain a patern in regex it self, without using the -v option of grep? (15 Replies)
Discussion started by: vistastar
15 Replies

8. Shell Programming and Scripting

Regex for filename in grep

I want to print the filename keyword="XXTNL_AVSKRIV2ING" ftype="sql' I wan to search the keyword in all the sql files and the output shoul dbe filename:count grep -iwc "$keyword" *.$ftype | grep -v ":0$" But the output does not dispaly the filename which contains space as... (4 Replies)
Discussion started by: millan
4 Replies

9. UNIX for Beginners Questions & Answers

Grep in regex

Hello guys, Here i am writing a script in bash to check for a valid URL from a file using regex This is my input file http://www.yahoo.commmmmm http://www.google.com https://www.gooogle.co www.test6.co.in www.gmail.com www.google.co htt://www.money.com http://eeeess.google.com... (2 Replies)
Discussion started by: Meeran Rizvi
2 Replies

10. UNIX for Beginners Questions & Answers

Grep regex

Hi everyone, I'm looking for a grep command to match the following pattern from a file: <EGS>10234567<EGS> I used this following command to do this: grep -E '^<EGS>{8}<EGS>' test.txt In output I got: <EGS>10234567<EGS> Till now it work, but if I add something at the end of the line... (2 Replies)
Discussion started by: Arnaudh78
2 Replies
lookbib(1)							   User Commands							lookbib(1)

NAME
lookbib - find references in a bibliographic database SYNOPSIS
lookbib database DESCRIPTION
A bibliographic reference is a set of lines, constituting fields of bibliographic information. Each field starts on a line beginning with a `%', followed by a key-letter, then a blank, and finally the contents of the field, which may continue until the next line starting with `%'. The lookbib utility uses an inverted index made by indxbib to find sets of bibliographic references. It reads keywords typed after the `>' prompt on the terminal, and retrieves records containing all these keywords. If nothing matches, nothing is returned except another `>' prompt. It is possible to search multiple databases, as long as they have a common index made by indxbib(1). In that case, only the first argument given to indxbib is specified to lookbib. If lookbib does not find the index files (the .i[abc] files), it looks for a reference file with the same name as the argument, without the suffixes. It creates a file with a .ig suffix, suitable for use with fgrep (see grep(1)). lookbib then uses this fgrep file to find refer- ences. This method is simpler to use, but the .ig file is slower to use than the .i[abc] files, and does not allow the use of multiple reference files. FILES
x.ia x.ib x.ic index files x.ig reference file ATTRIBUTES
See attributes(5) for descriptions of the following attributes: +-----------------------------+-----------------------------+ | ATTRIBUTE TYPE | ATTRIBUTE VALUE | +-----------------------------+-----------------------------+ |Availability |SUNWdoc | +-----------------------------+-----------------------------+ SEE ALSO
addbib(1), grep(1), indxbib(1), refer(1), roffbib(1), sortbib(1), attributes(5) BUGS
Probably all dates should be indexed, since many disciplines refer to literature written in the 1800s or earlier. SunOS 5.10 14 Sep 1992 lookbib(1)

Featured Tech Videos

All times are GMT -4. The time now is 08:06 AM.
Unix & Linux Forums Content Copyright 1993-2020. All Rights Reserved.
Privacy Policy