Regular Expression description
^([1-9]|[1-9][0-9]|1[0-9][0-9]|2[0-4][0-9]|25[0-5])(\.([0-9]|[1-9][0-9]|1[0-9][0-9]|2[0-4][0-9]|25[0-5])){3}$
Options: ^ and $ match at line breaks
Assert position at the beginning of a line (at beginning of the string or after a line break character)
Match the regular expression below and capture its match into backreference number 1 - ([1-9]|[1-9][0-9]|1[0-9][0-9]|2[0-4][0-9]|25[0-5])
Match either the regular expression below (attempting the next alternative only if this one fails) - [1-9]
Match a single character in the range between "1" and "9" - [1-9]
Or match regular expression number 2 below (attempting the next alternative only if this one fails) - [1-9][0-9]
Match a single character in the range between "1" and "9" - [1-9]
Match a single character in the range between "0" and "9" - [0-9]
Or match regular expression number 3 below (attempting the next alternative only if this one fails) - 1[0-9][0-9]
Match the character "1" literally - 1
Match a single character in the range between "0" and "9" - [0-9]
Match a single character in the range between "0" and "9" - [0-9]
Or match regular expression number 4 below (attempting the next alternative only if this one fails) - 2[0-4][0-9]
Match the character "2" literally - 2
Match a single character in the range between "0" and "4" - [0-4]
Match a single character in the range between "0" and "9" - [0-9]
Or match regular expression number 5 below (the entire group fails if this one fails to match) - 25[0-5]
Match the characters "25" literally - 25
Match a single character in the range between "0" and "5" - [0-5]
Match the regular expression below and capture its match into backreference number 2 - (\.([0-9]|[1-9][0-9]|1[0-9][0-9]|2[0-4][0-9]|25[0-5])){3}
Exactly 3 times - {3}
Note: You repeated the capturing group itself. The group will capture only the last iteration. Put a capturing group around the repeated group to capture all iterations. - {3}
Match the character "." literally - \.
Match the regular expression below and capture its match into backreference number 3 - ([0-9]|[1-9][0-9]|1[0-9][0-9]|2[0-4][0-9]|25[0-5])
Match either the regular expression below (attempting the next alternative only if this one fails) - [0-9]
Match a single character in the range between "0" and "9" - [0-9]
Or match regular expression number 2 below (attempting the next alternative only if this one fails) - [1-9][0-9]
Match a single character in the range between "1" and "9" - [1-9]
Match a single character in the range between "0" and "9" - [0-9]
Or match regular expression number 3 below (attempting the next alternative only if this one fails) - 1[0-9][0-9]
Match the character "1" literally - 1
Match a single character in the range between "0" and "9" - [0-9]
Match a single character in the range between "0" and "9" - [0-9]
Or match regular expression number 4 below (attempting the next alternative only if this one fails) - 2[0-4][0-9]
Match the character "2" literally - 2
Match a single character in the range between "0" and "4" - [0-4]
Match a single character in the range between "0" and "9" - [0-9]
Or match regular expression number 5 below (the entire group fails if this one fails to match) - 25[0-5]
Match the characters "25" literally - 25
Match a single character in the range between "0" and "5" - [0-5]
Assert position at the end of a line (at the end of the string or before a line break character) - $
Hi,
Actually i have written one test.sh (shell program) in bash.
Here i have a variables $a which stored the value package1.
Now I want to write a regular expression inside the if command that "if $a variable contains letter p in the begining of the value package1 then it is coming true.... (5 Replies)
I am attempting to convert rewrite rules to Nginx, and since due to the mass amount of rewrites we must convert, I've been trying to write a script to help me on a specific part, easily.
So far I have this:
rewrite ^action/static/(+)/$ staticPage.php?pg=$1&%$query_string;
What I want done... (5 Replies)
I want to block all special characters except alphanumerics.. and "."(dot ) character
currently am using //
I want to even block only single dot or multiple dots..
ex:
. or .............. should be blocked.
please provide me the reg ex.
---------- Post updated at 05:11 AM... (10 Replies)
I have a large file encoded in Unicode that I need to convert to CSV. In general, I know how to do this by regular expression substitutions using sed or Perl, but one problem I am having is that I need to put a quotation mark at the end of each line to protect the last field. The usual regex... (1 Reply)
Good morning all!!
In my code I and looking through file /etc/syslog.congf and printing every line that has /var/log in it. I need to turn the if 9$line) into a regex code instead.
#!/usr/bin/perl
@file= 'cat /etc/syslog.conf'; //when
foreach $line (@file){
if ($line =~... (3 Replies)
I am trying to grep the following line in a file using a bash shell:
(..)
admin1::14959::::::
(..)
It works with the following expression (as expected)
# cat file | grep ^*::
admin1::14959::::::
but it does not work with (not expected)
# cat /etc/shadow | grep ^+::
I assume the... (2 Replies)
Hello,
Could someone explain why this one returns nothing:
$ x=/jon/
$ echo jon | awk -v xa=$x '$1~xa {print}'
$
while the following works fine:
$ x=jon
$ echo jon | awk -v xa=$x '$1==xa {print}'
$ jon
and the following works fine:
$ echo jon | awk '$1~/jon/ {print}'
$ jon
... (3 Replies)
Hi,
Server - MEDIAWIKI - MYSQL - CENTOS 5 - PHP5
I have a database import of close to a million pages into my wiki, mediawiki site,
the format that were left with is not pretty, and I need to find a way to clean this up and present it nicely...
I think regex is the best option as I can... (1 Reply)
I have following expression:
echo "Sun 12 Jul BST 2014\nSun 12 Jul 2014\nSun 12 Jul IS 2014" | awk '/(Sun)+( 12)+( Jul )+({3} )?(2014)/{print;}'
I ran above code in AIX box and output is as follows
Sun 12 Jul BST 2014
Sun 12 Jul 2014
I ran above code in Linux box and output is as... (8 Replies)
I have a XML file where there is a tag with like
<wd:address_line_1>1234 Street</wd:address_line_1>
I want to replace the values "1234 Street" with "Test Data". Different people have different address lines and i want to replace with a fixed value to mask the file. I was trying to use sed... (7 Replies)