Login or Register to Ask a Question and Join Our Community

Sponsored Content
Full Discussion: Regular Expression - Switch Entire String
Top Forums Shell Programming and Scripting Regular Expression - Switch Entire String Post 302923959 by rjulich on Wednesday 5th of November 2014 01:32:51 PM
Old 11-05-2014
Scissors Regular Expression - Switch Entire String
I would like to be able to use a regular expression to find and replace entire strings, but not replace if the string is a substring in a larger string.

Example:
Code:
$string = "ABC ABCDEF ABC ABCDEF ABC";
Something like - $string =~ s/ABC/XYZ/g;

->Desired:
Code:
$string = "XYZ ABCDEF XYZ ABCDEF XYZ";

->NOT:
Code:
$string = "XYZ XYZDEF XYZ XYZDEF XYZ";

Last edited by Don Cragun; 11-05-2014 at 02:40 PM.. Reason: Add CODE tags.
 

10 More Discussions You Might Find Interesting

1. UNIX for Dummies Questions & Answers

Regular Expression - match 'b' that follows 'a' and is at the end of a string

Hi, I'm struggling with a regex that would match a 'b' that follows an 'a' and is at the end of a string of non-white characters. For example: Line 1: aba abab b abb aab bab baa I can find the right strings but I'm lacking knowledge of how to "discard" the bits that precede bs.... (2 Replies)
Discussion started by: machinogodzilla
2 Replies

2. Shell Programming and Scripting

validate a string against a regular expression

Hi there i have a script which will create unix user accounts. Id like to validate the entered string so that it is specifically 8 characters or less and consists of only ! not Is there a way to validate a string against a regular expression.. i.e size=`printf "$var | wc -m` ... (1 Reply)
Discussion started by: hcclnoodles
1 Replies

3. Shell Programming and Scripting

Help: Regular Expression for Negate Matching String

Hi guys, as per subject I am having problem with regular expressions. Example, if i got a string "javax.servlet.http.HttpServlet.service" that may occurred anywhere within a text file. How can I used the negate pattern matching of regular expression? I tried the below pattern but it... (4 Replies)
Discussion started by: DrivesMeCrazy
4 Replies

4. Shell Programming and Scripting

regular expression format string in one line.

Hi All, @months = qw(Jan Feb Mar Apr May Jun Jul Aug Sep Oct Nov Dec); $day=091023; $day_combine = $day; $day_combine =~ s/({2})({2})({2})/20$1-$months-$3/; Instead of three lines, is possible to combine the last two lines into a single line? means no need assign $day to $day_combine... (2 Replies)
Discussion started by: jimmy_y
2 Replies

5. Shell Programming and Scripting

Regular Expression doesn't match dot "." in a string

hello, I am writting a regular expression that intend to match any tunnel or serial interface but it doesn't mtach any serial sub-interface. For example, statement should match "Tunnel3" or "Serial0/1" but shouldn't match "Serial0\1.1" (doesn't include dot ".") I tried the following but... (3 Replies)
Discussion started by: ahmed_zaher
3 Replies

6. Programming

Perl regular expression to check string ending

Hi, I am trying to write a regular expression in perl to check if the string end's with "numbers-numbers" or "-numbers". I experimented something like m/\d*-\d*$/ , but this is not solving my problem. Can anyone help me in writing this expression? Well spelled titles and proper use of code... (2 Replies)
Discussion started by: successlin
2 Replies

7. Shell Programming and Scripting

How can awk search a string without using regular expression?

Hello, Awk seem treat the pattern as regular expression, how can awk search not using regular expression? e.g. just represent for "", not "A" or "a" . I don't want to add backslash . (2 Replies)
Discussion started by: 915086731
2 Replies

8. Programming

Perl: How to read from a file, do regular expression and then replace the found regular expression

Hi all, How am I read a file, find the match regular expression and overwrite to the same files. open DESTINATION_FILE, "<tmptravl.dat" or die "tmptravl.dat"; open NEW_DESTINATION_FILE, ">new_tmptravl.dat" or die "new_tmptravl.dat"; while (<DESTINATION_FILE>) { # print... (1 Reply)
Discussion started by: jessy83
1 Replies

9. Shell Programming and Scripting

String regular expression

Hi, temp="/usr=25,/usr/lib=12" How to get only dir names with out values. I tried like below but no use. tmp=${temp##*,} echo $tmp o/p: /usr/lib=12 expected o/p: /usr /usr/lib ---> in array (13 Replies)
Discussion started by: munna_dude
13 Replies

10. Shell Programming and Scripting

Grep command to search a regular expression in a line an only print the string after the match

Hello, one step in a shell script i am writing, involves Grep command to search a regular expression in a line an only print the string after the match an example line is below /logs/GRAS/LGT/applogs/lgt-2016-08-24/2016-08-24.8.log.zip:2016-08-24 19:12:48,602 ERROR... (9 Replies)
Discussion started by: Ramneekgupta91
9 Replies

LEARN ABOUT SUNOS

mlib_imagecolorrgb2xyz

mlib_ImageColorRGB2XYZ(3MLIB)				    mediaLib Library Functions				     mlib_ImageColorRGB2XYZ(3MLIB)

NAME

       mlib_ImageColorRGB2XYZ - RGB to XYZ color conversion

SYNOPSIS

       cc [ flag... ] file... -lmlib [ library... ]
       #include <mlib.h>

       mlib_status mlib_ImageColorRGB2XYZ(mlib_image *dst, const mlib_image *src);

DESCRIPTION

       The mlib_ImageColorRGB2XYZ() function performs a color space conversion from ITU-R Rec.708 RGB with D64 white point to CIE XYZ.

       The source and destination images must be three-channel images.

       It uses the following equation:

       |X|   |cmat[0] cmat[1] cmat[2]|	 |R|
       |Y| = |cmat[3] cmat[4] cmat[5]| * |G|
       |Z|   |cmat[6] cmat[7] cmat[8]|	 |B|

       where

       cmat[] = { 0.412453, 0.357580, 0.180423,
		  0.212671, 0.715160, 0.072169,
		  0.019334, 0.119193, 0.950227 };
       src[x][y] = { R, G, B };
       dst[x][y] = { X, Y, Z };

PARAMETERS

       The function takes the following arguments:

       dst	       Pointer to destination image.

       src	       Pointer to source image.

RETURN VALUES

       The function returns MLIB_SUCCESS if successful. Otherwise it returns MLIB_FAILURE.

ATTRIBUTES

       See attributes(5) for descriptions of the following attributes:

       +-----------------------------+-----------------------------+
       |      ATTRIBUTE TYPE	     |	    ATTRIBUTE VALUE	   |
       +-----------------------------+-----------------------------+
       |Interface Stability	     |Evolving			   |
       +-----------------------------+-----------------------------+
       |MT-Level		     |MT-Safe			   |
       +-----------------------------+-----------------------------+

SEE ALSO

       mlib_ImageColorConvert1(3MLIB),	  mlib_ImageColorConvert1_Fp(3MLIB),	mlib_ImageColorRGB2XYZ_Fp(3MLIB),   mlib_ImageColorXYZ2RGB(3MLIB),
       mlib_ImageColorXYZ2RGB_Fp(3MLIB), mlib_ImageColorYCC2RGB(3MLIB), mlib_ImageColorYCC2RGB_Fp(3MLIB), attributes(5)

SunOS 5.10							    10 Nov 2004 				     mlib_ImageColorRGB2XYZ(3MLIB)
All times are GMT -4. The time now is 10:30 PM.
Unix & Linux Forums Content Copyright 1993-2022. All Rights Reserved.
Privacy Policy