letz say that my file has 7 records with only one field. So my file has:
11111111
000000000000000
1111
aaaabbbccc
1111111222000000
aaaaaaaa
zz
All i need is:
1. when the field has a repetition of the same instance(a-z or 0-9), i would consideer it to be invalid.... (1 Reply)
Hi all,
I have a file which contains 1000s of lines of text. I need to delete all lines with the words "Red" EXCEPT if the line also contains the word "GREEN"...
For example:
ThisIs some random text that should be red deleted
ThisIs some random text that should NOT be red deleted green
... (4 Replies)
hi,
I need to replace all these lines from my text file
123end
234end
324end
234end
989end
258end
924end
At the moment I know how to replace "end". But I want to replace the numbers before end as well. How can I do this ?
sed s/end/newWord/ myfile.txt newFile.txt
thanks (3 Replies)
Hello all,
I need to match the red expressions in the following lines :
MACRO_P+P-_scrambledServices_REM_PRC30.xml
MACRO_P+P-_scrambledServices_REM_RS636.xml
MACRO_P+P-_scrambledServices_REM_RS535.xml
and so on...
Can anyone give me a PERL regular expression to match those characters ?
... (5 Replies)
Dear all,
I have a simple issue on a perl regular expression. I want to get the characters in red from the next lines :
POWER_key
LEFT_key
RIGHT_key
OK_key
DOWN_key
and so on...
Thanks in advance for reply.
Ludo (1 Reply)
Could you help me with this please. This regular expression seems to match for the wrong input
#!/usr/bin/perl
my $inputtext = "W1a$%XXX";
if($inputtext =~ m/+X+/)
{
print "matches\n";
}
The problem seems to be %. if inputtext is W1a$XXX, the regex doesnot match.... (5 Replies)
I am completely new to perl programming. My father is helping me learn said programming language. However, I am stuck on one of the assignments he has given me, and I can't find very much help with it via google, either because I have a tiny attention span, or because I can be very very dense.
... (4 Replies)
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)
Hi ,
I have the below array
my @actionText = ("delivered to governor on 21/23/3345" , "deliver jllj" , "ram 2345/43");
When i am trying to grep the contents of array and if mathced substituting with the digitis or some date format from the element like below
my @action = grep { $_ =~... (7 Replies)
Discussion started by: ragilla
7 Replies
LEARN ABOUT PHP
strnatcmp
STRNATCMP(3) 1 STRNATCMP(3)strnatcmp - String comparisons using a "natural order" algorithm
SYNOPSIS
int strnatcmp (string $str1, string $str2)
DESCRIPTION
This function implements a comparison algorithm that orders alphanumeric strings in the way a human being would, this is described as a
"natural ordering". Note that this comparison is case sensitive.
PARAMETERS
o $str1
- The first string.
o $str2
- The second string.
RETURN VALUES
Similar to other string comparison functions, this one returns < 0 if $str1 is less than $str2; > 0 if $str1 is greater than $str2, and 0
if they are equal.
EXAMPLES
An example of the difference between this algorithm and the regular computer string sorting algorithms (used in strcmp(3)) can be seen
below:
<?php
$arr1 = $arr2 = array("img12.png", "img10.png", "img2.png", "img1.png");
echo "Standard string comparison
";
usort($arr1, "strcmp");
print_r($arr1);
echo "
Natural order string comparison
";
usort($arr2, "strnatcmp");
print_r($arr2);
?>
The above example will output:
Standard string comparison
Array
(
[0] => img1.png
[1] => img10.png
[2] => img12.png
[3] => img2.png
)
Natural order string comparison
Array
(
[0] => img1.png
[1] => img2.png
[2] => img10.png
[3] => img12.png
)
SEE ALSO preg_match(3), strcasecmp(3), substr(3), stristr(3), strcmp(3), strncmp(3), strncasecmp(3), strnatcasecmp(3), strstr(3), natsort(3), nat-
casesort(3).
PHP Documentation Group STRNATCMP(3)