Login or Register to Ask a Question and Join Our Community

Sponsored Content
Full Discussion: grep backreferencing question
Top Forums Shell Programming and Scripting grep backreferencing question Post 302464271 by DGPickett on Tuesday 19th of October 2010 03:49:51 PM
Old 10-19-2010
First opened is first numbered, but try it and see.

sed 's/\(\(.\).\).*/\1 \2/' <<!
abcdefg
!
ab a
This User Gave Thanks to DGPickett For This Post:
prasanna1157
 

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. Shell Programming and Scripting

grep question

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

Grep question

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

Grep question.

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

'Backreferencing' in SQL?

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

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

7. 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

8. Shell Programming and Scripting

Grep question

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

Question about grep

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

10. 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

LEARN ABOUT DEBIAN

nwbpset

NWBPSET(1)							      nwbpset								NWBPSET(1)

NAME

       nwbpset - Create a bindery property or set its value

SYNOPSIS

       nwbpset [ -h ] [ -S server ] [ -U user name ] [ -P password | -n ] [ -C ]

DESCRIPTION

       nwbpset Reads a property specification from the standard input and creates and sets the corresponding property. The format is determined by
       the output of 'nwbpvalues -c'. nwbpset will hopefully become an important part of the bindery management  suite	of  ncpfs,  together  with
       'nwbpvalues -c'. See util/nwbpsecurity for an example.

       As another example, look at the following command line:

	 nwbpvalues -t 1 -o supervisor -p user_defaults -c |
	 sed '2s/.*/ME/'|
	 sed '3s/.*/LOGIN_CONTROL/'|
	 nwbpset

       With  this command, the property user_defaults of the user object 'supervisor' is copied into the property login_control of the user object
       'me'.

	 nwbpvalues -t 1 -o me -p login_control -c |
	 sed '9s/.*/ff/'|
	 nwbpset

       This command disables the user object me.

       Feel free to contribute other examples!

       nwbpset looks up the file $HOME/.nwclient to find a file server, a user name and possibly a password. See nwclient(5) for more information.
       Please note that the access permissions of $HOME/.nwclient MUST be 600 for security reasons.

OPTIONS

       -h
	  -h is used to print out a short help text.

       -S server
	  server is the name of the server you want to use.

       -U user
	  user is the user name to use for login.

       -P password
	  password  is	the  password to use for login. If neither -n nor -P are given, and the user has no open connection to the server, nwbpset
	  prompts for a password.

       -n
	  -n should be given if no password is required for the login.

       -C
	  By default, passwords are converted to uppercase before they are sent to the server, because most servers require this. You can turn off
	  this conversion by -C.

AUTHORS

       nwbpset was written by Volker Lendecke. See the Changes file of ncpfs for other contributors.

nwbpset 							     8/7/1996								NWBPSET(1)
All times are GMT -4. The time now is 12:28 PM.
Unix & Linux Forums Content Copyright 1993-2022. All Rights Reserved.
Privacy Policy