Login or Register to Ask a Question and Join Our Community

Sponsored Content
Full Discussion: How to do equivalent of /(regexp){0}/ ?
Top Forums Shell Programming and Scripting How to do equivalent of /(regexp){0}/ ? Post 302544154 by pludi on Wednesday 3rd of August 2011 04:39:51 AM
Old 08-03-2011
You need a zero-width negative look-behind assertion from the extended patterns. Example:
Code:
$ cat /tmp/test.txt
This should be matched.
This should not be matched.
$ perl -ne 'print if /(?<!not\s)be/;' /tmp/test.txt
This should be matched.
$

This User Gave Thanks to pludi For This Post:
Vi-Curious
 

10 More Discussions You Might Find Interesting

1. Shell Programming and Scripting

RegExp question

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 (3 Replies)
Discussion started by: penfold
3 Replies

2. 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

3. Shell Programming and Scripting

regexp assistance

i have a list of text a b c d e My desired output is 'a','b','c','d','e' any advise? My file was actually in excel format, i copied out the column into notepad. I am not sure if the \n exists in between. (2 Replies)
Discussion started by: new2ss
2 Replies

4. Shell Programming and Scripting

regexp help

I'd like to know if there is a catchall line for renaming the following patterns: s01e03 -> 01x03 s4e9 -> 04x09 s10e08 ->10x08 and possibly even: 318 -> 03x18 1002 ->10x02 if its the first 3 or first digit number in the string. thanks! (0 Replies)
Discussion started by: TinCanFury
0 Replies

5. 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

6. 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

7. Shell Programming and Scripting

matching regexp

Hi, maybe it is stupid question, but is it possible to match expression like this ? : ... // ... ( there is "//" somewhere on the line and on the end of the line there ISN'T "*/" ) I've tried something like : (in SED) sed 's/\/\/' but I need "*/" not to be on the end of the line ...... (2 Replies)
Discussion started by: kolage
2 Replies

8. 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

9. Shell Programming and Scripting

Gawk and regexp

Hello, This is a problem I've worked on a while and can't figure out. There is a file.txt ..some stuff.. ] ] ..some stuff.. The Awk program is trying to extract the year portion of the birth and death ("98: and "2nd C.") using the below technique #!/bin/awk @include... (5 Replies)
Discussion started by: Mid Ocean
5 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 CENTOS

xmscrollvisible

XmScrollVisible(library call)											     XmScrollVisible(library call)

NAME

       XmScrollVisible -- A ScrolledWindow function that makes an invisible
	descendant of a ScrolledWindow work area visible

SYNOPSIS

       #include <Xm/ScrolledW.h>
       void XmScrollVisible(
       Widget scrollw_widget,
       Widget widget,
       Dimension left_right_margin,
       Dimension top_bottom_margin);

DESCRIPTION

       XmScrollVisible makes an obscured or partially obscured widget or gadget descendant of a ScrolledWindow work area visible. The function re-
       positions the work area and sets the specified margins between the widget and the nearest viewport boundary. The widget's location relative
       to  the	viewport determines whether one or both of the margins must be adjusted. This function requires that the XmNscrollingPolicy of the
       ScrolledWindow widget be set to XmAUTOMATIC.

       scrollw_widget
		 Specifies the ID of the ScrolledWindow widget whose work area window contains an obscured descendant.

       widget	 Specifies the ID of the widget to be made visible.

       left_right_margin
		 Specifies the margin to establish between the left or right edge of the widget and the associated edge  of  the  viewport.   This
		 margin is established only if the widget must be moved horizontally to make it visible.

       top_bottom_margin
		 Specifies  the  margin  to  establish between the top or bottom edge of the widget and the associated edge of the viewport.  This
		 margin is established only if the widget must be moved vertically to make it visible.

       For a complete definition of ScrolledWindow and its associated resources, see XmScrolledWindow(3)

RELATED

       XmScrolledWindow(3).

														     XmScrollVisible(library call)
All times are GMT -4. The time now is 04:51 PM.
Unix & Linux Forums Content Copyright 1993-2022. All Rights Reserved.
Privacy Policy