Sponsored Content
Top Forums Shell Programming and Scripting using regex to get part of a string ? Post 302346954 by Franklin52 on Monday 24th of August 2009 01:31:47 PM
Old 08-24-2009
Something like this?

Code:
sed 's/\(.*z\).*/\1/'

Or shorter:

Code:
sed 's/z.*/z/'

With shell variable substring:

Code:
echo ${var/z*/z}

 

10 More Discussions You Might Find Interesting

1. Shell Programming and Scripting

With Regex Spliting the string into Alphanumeric and Numeric part

Hi there With shell script I'm trying to split the string into two parts. One is alphanumeric part, the other one is a numeric part. dummy_postcode_1 = 'SL1' --> res_alpha = 'SL' and res_numeric = '1' dummy_postcode_2 = 'S053' --> res_alpha = 'S' and res_numeric = '053' ... (1 Reply)
Discussion started by: ozgurgul
1 Replies

2. UNIX for Dummies Questions & Answers

regex on first string in a variable.

Hi all, this is driving me nuts. I need to evaluate if a variable in a shell script has a heading s or m character e.g. s92342394 or m9233489 if so then I need to get rid of them. I'm quite familiar with PERL and could do it there in 3 mins but I have not found a decent way to do this in a shell.... (1 Reply)
Discussion started by: Endo
1 Replies

3. Shell Programming and Scripting

regex to select last part of a path

Hi all, I am learning the use of regular expression and I would like to know which regex can be used to select only the last part of a directory path name. Something like: /dir1/dir2/dir2 and I want to select the last /dir2 where dir2 can be any kind of string. Thanks a lot for your help.... (7 Replies)
Discussion started by: elric
7 Replies

4. Shell Programming and Scripting

filtering out duplicate substrings, regex string from a string

My input contains a single word lines. From each line data.txt prjtestBlaBlatestBlaBla prjthisBlaBlathisBlaBla prjthatBlaBladpthatBlaBla prjgoodBlaBladpgoodBlaBla prjgood1BlaBla123dpgood1BlaBla123 Desired output --> data_out.txt prjtestBlaBla prjthisBlaBla... (8 Replies)
Discussion started by: kchinnam
8 Replies

5. Shell Programming and Scripting

Selecting a part of the text (regex pattern, awk, sed)

Hello, let's start by giving you guys a few examples of the text: "READ /TEXT123/ABC123" "READ /TEXT123/ABC123/" "READ TEXT123/ABC123" "READ TEXT123/ABC123/" "READ TEXT123/TEXT456/ABC123" "READ /TEXT123/TEXT456/ABC123" "READ /TEXT123/TEXT456/ABC123/" TEXT and ABC can be and I... (5 Replies)
Discussion started by: TehOne
5 Replies

6. Shell Programming and Scripting

Using Sed to remove part of line with regex

Greetings everyone. Right now I am working on a script to be used during automated deployment of servers. What I have to do is remove localhost.localdomain and localhost6.localdomain6 from the /etc/hosts file. Simple, right? Except most of the examples I've found using sed want to delete the entire... (4 Replies)
Discussion started by: msarro
4 Replies

7. Shell Programming and Scripting

Perl: Regex, string matching

Hi, I've a logfile which i need to parse and get the logs depending upon the user input. here, i'm providing an option to enter the string which can be matched with the log entries. e.g. one of the logfile entry reads like this - $str = " mpgw(BLUESOAPFramework):... (6 Replies)
Discussion started by: butterfly20
6 Replies

8. Shell Programming and Scripting

Deleting part of a string : string manipulation

i have something like this... echo "teCertificateId" | awk -F'Id' '{ print $1 }' | awk -F'te' '{ print $2 }' Certifica the awk should remove 'te' only if it is present at the start of the string.. anywhere else it should ignore it. expected output is Certificate (7 Replies)
Discussion started by: vivek d r
7 Replies

9. Shell Programming and Scripting

String regex comparisons

Here is the sample code: str1="abccccc" str2="abc?" if ]; then echo "same string" else echo "different string" fi Given that ? implies 0 or 1 match of preceding character, I was expecting the output to be "different string", but I am seeing "same string". Am I not using the... (3 Replies)
Discussion started by: Rameshck
3 Replies

10. Shell Programming and Scripting

Grep with regex containing one string but not the other

Hi to you all, I'm just struggling with a regex problem and I'm pretty sure that I'm missing sth obvious... :confused: I need a regex to feed my grep in order to find lines that contain one string but not the other. Here's the data example: 2015-04-08 19:04:55,926|xxxxxxxxxx| ... (11 Replies)
Discussion started by: stresing
11 Replies
SPLITI(3)								 1								 SPLITI(3)

spliti - Split string into array by regular expression case insensitive

SYNOPSIS
array spliti (string $pattern, string $string, [int $limit = -1]) DESCRIPTION
Splits a $string into array by regular expression. This function is identical to split(3) except that this ignores case distinction when matching alphabetic characters. Warning This function has been DEPRECATED as of PHP 5.3.0. Relying on this feature is highly discouraged. PARAMETERS
o $pattern - Case insensitive regular expression. If you want to split on any of the characters which are considered special by regular expressions, you'll need to escape them first. If you think spliti(3) (or any other regex function, for that matter) is doing something weird, please read the file regex.7, included in the regex/ subdirectory of the PHP distribution. It's in manpage for- mat, so you'll want to do something along the lines of man /usr/local/src/regex/regex.7 in order to read it. o $string - The input string. o $limit - If $limit is set, the returned array will contain a maximum of $limit elements with the last element containing the whole rest of $string. RETURN VALUES
Returns an array of strings, each of which is a substring of $string formed by splitting it on boundaries formed by the case insensitive regular expression $pattern. If there are n occurrences of $pattern, the returned array will contain n+1 items. For example, if there is no occurrence of $pattern, an array with only one element will be returned. Of course, this is also true if $string is empty. If an error occurs, spliti(3) returns FALSE. EXAMPLES
This example splits a string using 'a' as the separator : Example #1 spliti(3) example <?php $string = "aBBBaCCCADDDaEEEaGGGA"; $chunks = spliti ("a", $string, 5); print_r($chunks); ?> The above example will output: Array ( [0] => [1] => BBB [2] => CCC [3] => DDD [4] => EEEaGGGA ) NOTES
Note As of PHP 5.3.0, the regex extension is deprecated in favor of the PCRE extension. Calling this function will issue an E_DEPRECATED notice. See the list of differences for help on converting to PCRE. Tip spliti(3) is deprecated as of PHP 5.3.0. preg_split(3) with the i ( PCRE_CASELESS) modifier is the suggested alternative. SEE ALSO
preg_split(3), split(3), explode(3), implode(3). PHP Documentation Group SPLITI(3)
All times are GMT -4. The time now is 02:24 PM.
Unix & Linux Forums Content Copyright 1993-2022. All Rights Reserved.
Privacy Policy