For a programming exercise, I am mean to design a Perl script that detects double letters in a text file.
I tried the following expressions
# Check for any double letter within the alphabet
/+/
# Check for any repetition of an alphanumeric character
/\w+/
Im aware that the... (8 Replies)
Hi,
Can anyone help me to find regular expression for the following in Perl?
"The string can only contain lower case letters (a-z) and no more than one of any letter."
For example: "table" is accepted, whether "dude" is not.
I have coded like this:
$str = "table";
if ($str =~ m/\b()\b/) {... (4 Replies)
I have got numbers like
l255677
l376039
l188144
l340482
l440700
l254113
to match the numbers starting with '13' what would be the regex
=~/13(.*)/ =======>This is not working ....
But for user123,user657
regex =~/user(.*)/ ========>works
Thanks for help..!! (7 Replies)
I am having trouble parsing rpm filenames in a shell script.. I found a snippet of perl code that will perform the task but I really don't have time to rewrite the entire script in perl. I cannot for the life of me convert this code into something sed-friendly:
if ($rpm =~ /(*)-(*)-(*)\.(.*)/)... (1 Reply)
Hello,
Although I have found similar questions, I could not find
advice that could help with my problem. The issue:
I am trying to replace all occurrences of a regex, but
I cannot make the regex groups work together.
This is a simple input test file:
The Vedanta Philosophy... (3 Replies)
i have a script in which i need to skip comments, and i am able to achieve it partially...
IN text file:
{****************************
{test : test...test }
Script:
while (<$fh>)
{
push ( @data, $_);
}
if ( $data =~ m/(^{\*+$)/ ){
}
With the above match i am... (5 Replies)
Hi Guys
I have the following regex
$OSRELEASE = $1 if ($output =~ /(Mac OS X (Server )?10.\d)/);
output is currently
Mac OS X 10.7.5
when the introduction of Mac 10.8 output changes to
OS X 10.8.2
they have dropped the Mac bit so i changed the regex to be (2 Replies)
Hello folks,
Looking for a quick help on regex in my perl script.
here's the string i want to parse and get the 2nd field out of it.
$str = " 2013-08-07 12:29 Beta ACTIVE";
I want to extract 'Beta' out of this string. This string will keep on changing... (2 Replies)
I am not a big expert in regex and have just little understanding of that language.
Could you help me to understand the regular Perl expression:
^(?!if\b|else\b|while\b|)(?:+?\s+){1,6}(+\s*)\(*\) *?(?:^*;?+){0,10}\{
------
This is regex to select functions from a C/C++ source and defined in... (2 Replies)
Anybody have an explanation for why \s doesn't match ' ' in a character class? Here are 3 examples with the final example showing that \s in a character class (demonstrated by using egrep -o) fails:
\s works outside of class..
# echo " FOO " | egrep -o '\s+\s'
FOO
Here is a... (6 Replies)
Discussion started by: blackrageous
6 Replies
LEARN ABOUT LINUX
svnpath
SVNPATH(1)SVNPATH(1)NAME
svnpath - output svn url with support for tags and branches
SYNOPSIS
svnpath
svnpath tags
svnpath branches
svnpath trunk
DESCRIPTION
svnpath is intended to be run in a Subversion working copy.
In its simplest usage, svnpath with no parameters outputs the svn url for the repository associated with the working copy.
If a parameter is given, svnpath attempts to instead output the url that would be used for the tags, branches, or trunk. This will only
work if it's run in the top-level directory that is subject to tagging or branching.
For example, if you want to tag what's checked into Subversion as version 1.0, you could use a command like this:
svn cp $(svnpath) $(svnpath tags)/1.0
That's much easier than using svn info to look up the repository url and manually modifying it to derive the url to use for the tag, and
typing in something like this:
svn cp svn+ssh://my.server.example/svn/project/trunk svn+ssh://my.server.example/svn/project/tags/1.0
svnpath uses a simple heuristic to convert between the trunk, tags, and branches paths. It replaces the first occurrence of trunk, tags, or
branches with the name of what you're looking for. This will work ok for most typical Subversion repository layouts.
If you have an atypical layout and it does not work, you can add a ~/.svnpath file. This file is perl code, which can modify the path in
$url. For example, the author uses this file:
#!/usr/bin/perl
# svnpath personal override file
# For d-i I sometimes work from a full d-i tree branch. Remove that from
# the path to get regular tags or branches directories.
$url=~s!d-i/(rc|beta)[0-9]+/!!;
$url=~s!d-i/sarge/!!;
1
LICENSE
GPL version 2 or later
AUTHOR
Joey Hess <joey@kitenet.net>
Debian Utilities 2013-12-23 SVNPATH(1)