can i do this? i am learning this on my own..and from the book..simple unix i am not sure if the syntax would work
if
statement
then
statement
do or for or while
statement
done
else
statement
fi....
I dont know how else to explain that...I hope I... (2 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)
Folks! Anyone please explain the behavior of this program step by step. Thanks.
#! /usr/bin/perl
$testfile = "./testfile2";
for ( $i = 1, $i <= 5, $i++) {
open ($FILE, ">", $testfile);
print ($FILE "Output 1 \n");
close ($FILE);
}
print "The value of (4 * 2) / 2 is ";
print (4 * 2)... (1 Reply)
Hello Unix graduates,
I have gone through 50 posts here in this Unix.com, out of which 35-40 are answered with regex.. Regex is always been a problem for me. :wall:
I have gone through few URLs still it doesn't help me to reach what you guys are.. :confused:
How to get skilled on... (1 Reply)
I have a file of protein sequences with headers (my source file). Based on a list of IDs (which are included in some of the headers), I'd like to print out only the specified sequences, with only the ID as header.
In other words, I'd like to search source.txt for the terms in IDs.txt, and print... (3 Replies)
Hello All,
I am a beginner in C, although I believe my learning curve is rather steep.
I would like to know if any of you would have some recommendations with some learning materials to become a good C developer.
I am particularly thinking about some CBT courses or some good Quizz that would... (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)
I'm trying to get some exclusions into our sendmail regular expression for the K command. The following configuration & regex works:
LOCAL_CONFIG
#
Kcheckaddress regex -a@MATCH
+<@+?\.++?\.(us|info|to|br|bid|cn|ru)
LOCAL_RULESETS
SLocal_check_mail
# check address against various regex... (0 Replies)
Discussion started by: RobbieTheK
0 Replies
LEARN ABOUT PHP
spliti
SPLITI(3) 1 SPLITI(3)spliti - Split string into array by regular expression case insensitiveSYNOPSIS
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)