Login or Register to Ask a Question and Join Our Community

Sponsored Content
Full Discussion: Questions on GREP command
Top Forums UNIX for Dummies Questions & Answers Questions on GREP command Post 302153520 by DeepakS on Tuesday 25th of December 2007 02:48:11 AM
Old 12-25-2007
Quote:
Originally Posted by stevefox
DeepakS,
Thanks for your reply but the command failed with the error below :

Code:
$ sed -n '/ERROR/ { N; N; /./p }' 20071225.log
sed: Function /ERROR/ { N; N; /./p } cannot be parsed.

Also, I would like to specifiy the number of lines to print as an integer type parameter.
That worked for me I assumed sed would behave the same.

Does this work:

Code:
sed -n "/ERROR/,+2p" foo

If not, you may be better off with awk or perl. Or you could build your own copy of GNU grep.
 

10 More Discussions You Might Find Interesting

1. UNIX for Dummies Questions & Answers

Simple grep questions

Hi all, My boss wants me to find out how often e-m users are accessing their account:confused:. The mail server keeps log of all logins. I want to use grep the 'usernames', but it should come out the moment it first encounters the username in the log. Can I do that? I want to avoid 10+ greps... (2 Replies)
Discussion started by: nitin
2 Replies

2. UNIX for Dummies Questions & Answers

Unpratical SED and GREP questions

Hello every one, I have read a little about SED and GREP but I do not know how to do this: Using SED or GREP: "reverse all three letter words" "replace the last two digits in any string of digits by zeros (0)" "remove lines that start and end with the same word" and I have more like... (5 Replies)
Discussion started by: Lem2003
5 Replies

3. UNIX for Dummies Questions & Answers

grep questions

I have the data file: A 1 2 3 BBB 4 5 6 A 7 8 9 I want to grep "A" then-skip a line-then-add two sublines: I my command: grep +3 "A" datafile (8 Replies)
Discussion started by: bobo
8 Replies

4. UNIX for Dummies Questions & Answers

Using Grep Questions

Hello All, 1.) I am searching for ".exe" in a text file 2.) I need to search for a hexadecimal entree of at least four digits (8 Replies)
Discussion started by: Omega1589
8 Replies

5. Shell Programming and Scripting

Grep questions

Hello All, I have few of questions related to Grep given below: 1. Like Perl, is it possible in Grep to negate characters in square brackets. For example in Perl, if '^' is used inside '' then it acts as a negation characters. Can same be achieved through Grep's regular expression. 2. How... (9 Replies)
Discussion started by: paragkalra
9 Replies

6. Shell Programming and Scripting

Some questions about grep/awk

Hi guys. I need to filter some values from a number of log files. One of the files is: Interconnect Utilisation Results: Achieved Maximum Number of Concurrent Connections: 17 Statistics for Average Number of Concurrent Connections: Point Estimation: Confidence Interval: ... (2 Replies)
Discussion started by: Faaz0
2 Replies

7. Shell Programming and Scripting

grep and sed exact match questions

This post was previously mistaken for homework, but is actually a small piece of what I working on at work. Please answer if you can. QUESTION1 How do you grep only an exact string. I am using Solaris10 and do not have any GNU products installed. Contents of car.txt CAR1_KEY0 CAR1_KEY1... (2 Replies)
Discussion started by: thibodc
2 Replies

8. UNIX for Dummies Questions & Answers

Couple of questions wth grep/sort

I have different things that I was trying to do but am kind of struggling with this since I'm a Linux noob. The backround is that I have two files with student names in the same directory, and each file lists the student name, their major and their grade level. What is the most efficient way to... (6 Replies)
Discussion started by: tastybeer
6 Replies

9. Shell Programming and Scripting

Sed/grep questions

Hi. I have a txt file. I need to make a copy of the lines which are beginning with a mobile phone number, or a fix phone number. I have to copy thoose lines in numbers.txt, after that i have to delete then from the originally file. In numbers.txt i need to write a prefix before each number. if the... (1 Reply)
Discussion started by: T720
1 Replies

10. Homework & Coursework Questions

awk questions using sort and grep

1. The problem statement, all variables and given/known data: So i'll probably get told off for this but I have a few problems and rather than clog up the whole forum I'll post them here. Please bare in mind I am a complete novice when it comes to all this and so if you help please treat me like a... (4 Replies)
Discussion started by: jamesb18
4 Replies

LEARN ABOUT DEBIAN

shtool-install

SHTOOL-INSTALL.TMP(1)					      GNU Portable Shell Tool					     SHTOOL-INSTALL.TMP(1)

NAME

       shtool-install - GNU shtool install(1) command

SYNOPSIS

       shtool install [-v|--verbose] [-t|--trace] [-d|--mkdir] [-c|--copy] [-C|--compare-copy] [-s|--strip] [-m|--mode mode] [-o|--owner owner]
       [-g|--group group] [-e|--exec sed-cmd] file [file ...]  path

DESCRIPTION

       This command installs a one or more files to a given target path providing all important options of the BSD install(1) command.	The trick
       is that the functionality is provided in a portable way.

OPTIONS

       The following command line options are available.

       -v, --verbose
	   Display some processing information.

       -t, --trace
	   Enable the output of the essential shell commands which are executed.

       -d, --mkdir
	   To maximize BSD compatiblity, the BSD "shtool "install -d"" usage is internally mapped to the "shtool "mkdir -f -p -m 755"" command.

       -c, --copy
	   Copy the file to the target path. Default is to move.

       -C, --compare-copy
	   Same as -c except if the destination file already exists and is identical to the source file, no installation is done and the target
	   remains untouched.

       -s, --strip
	   This option strips program executables during the installation, see strip(1). Default is to install verbatim.

       -m, --mode mode
	   The file mode applied to the target, see chmod(1). Setting mode to ""-"" skips this step and leaves the operating system default which
	   is usually based on umask(1). Some file modes require superuser privileges to be set. Default is 0755.

       -o, --owner owner
	   The file owner name or id applied to the target, see chown(1). This option requires superuser privileges to execute. Default is to skip
	   this step and leave the operating system default which is usually based on the executing uid or the parent setuid directory.

       -g, --group group
	   The file group name or id applied to the target, see chgrp(1). This option requires superuser privileges to execute to the fullest
	   extend, otherwise the choice of group is limited on most operating systems.	Default is to skip this step and leave the operating
	   system default which is usually based on the executing gid or the parent setgid directory.

       -e, --exec sed-cmd
	   This option can be used one or multiple times to apply one or more sed(1) commands to the file contents during installation.

EXAMPLE

	#   Makefile
	install:
	     :
	    shtool install -c -s -m 4755 foo $(bindir)/
	    shtool install -c -m 644 foo.man $(mandir)/man1/foo.1
	    shtool install -c -m 644 -e "s/@p@/$prefix/g" foo.conf $(etcdir)/

HISTORY

       The GNU shtool install command was originally written by Ralf S.  Engelschall <rse@engelschall.com> in 1997 for GNU shtool. It was prompted
       by portability issues in the installation procedures of OSSP libraries.

SEE ALSO

       shtool(1), umask(1), chmod(1), chown(1), chgrp(1), strip(1), sed(1).

18-Jul-2008							   shtool 2.0.8 					     SHTOOL-INSTALL.TMP(1)
All times are GMT -4. The time now is 11:07 PM.
Unix & Linux Forums Content Copyright 1993-2022. All Rights Reserved.
Privacy Policy