hi,
I'm trying to create a program that will read a file and then check the file for each letter of the alphabet and then output the letter and the number of times it appears in the file, into a new file... this is what i have so far but it's not working.. if anyone could help that would be nice!... (10 Replies)
Hi,
I need to find whether the first character in a line is a alphabet or a number. If its a number i should sort it numerically. If its a alphabet i should sort it based on the ASCII value.And if it is something other than alphabet or number then sort it based on ASCII value.
The code i used... (2 Replies)
afternoon forums.
I need to get a way of testing as to wether an inputed character is part of the english alphabet.
i have come up with the following code but its not working at all.
until ']
do
echo This is not a Letter
done
any help would be beneficial to me. (1 Reply)
I have a text file in the following format
CCCCCGCCCCCCCCCCcCCCCCCCCCCCCCCC
AAAATAAAAAAAAAAAaAAAAAAAAAAAAAAA
TGTTTTTTTTTTTTGGtTTTTTTTTTTTTTTT
TTTT-TTTTTTTTTCTtTTTTTTTTTTTTTTT
Each row/line will have 32 letters and each line will only have multiple occurrences of 2 letters out of a pool... (1 Reply)
Hello,
I have to find out whether the last character is digit or alphabet. I manage to strip the last character but would need some help if there is one liner available to test the above.
set x = WM
echo $x | sed 's/.*\(.$\)/\1/'
O/P
M
I would like a one liner code to test whether the... (1 Reply)
I have a genotype.bim file where it contains information about SNPs and genotype. As a hypothetical example, let's say
genotype.bim
snp1 ... A G
snp2 ... G T
snp3 ... G T
snp4 ... G A
...
snpN ... C G
where first column identifies each SNP and 5th and 6th column has genotype... (3 Replies)
Good afternoon all,
I want to ask how to change some letter in my file with other letter in spesific line
eg.
data.txt
1
1
1
0
0
0
0
for example i want to change the 4th line with character 1.
How could I do it by SED or AWK.
I have tried to run this code but actually did not... (3 Replies)
Hi e
Hi everyone, I can't make this script work,
#! /bin/bash declare -A crypt=( ="A" ="a" ="B" ="b" ="C" ="c" =' ' ='!' ) encode () { local word=$1 for ((i=0; i<${#word}; ++i)) ; do local char=${word:$i:1} printf %s' ' ${crypt} done ... (5 Replies)
Discussion started by: Pinguino
5 Replies
LEARN ABOUT PHP
substr_count
SUBSTR_COUNT(3) 1 SUBSTR_COUNT(3)substr_count - Count the number of substring occurrencesSYNOPSIS
int substr_count (string $haystack, string $needle, [int $offset], [int $length])
DESCRIPTION substr_count(3) returns the number of times the $needle substring occurs in the $haystack string. Please note that $needle is case sensi-
tive.
Note
This function doesn't count overlapped substrings. See the example below!
PARAMETERS
o $haystack
- The string to search in
o $needle
- The substring to search for
o $offset
- The offset where to start counting
o $length
- The maximum length after the specified offset to search for the substring. It outputs a warning if the offset plus the length is
greater than the $haystack length.
RETURN VALUES
This function returns an integer.
CHANGELOG
+--------+-----------------------------------------------+
|Version | |
| | |
| | Description |
| | |
+--------+-----------------------------------------------+
| 5.1.0 | |
| | |
| | Added the $offset and the $length parameters |
| | |
+--------+-----------------------------------------------+
EXAMPLES
Example #1
A substr_count(3) example
<?php
$text = 'This is a test';
echo strlen($text); // 14
echo substr_count($text, 'is'); // 2
// the string is reduced to 's is a test', so it prints 1
echo substr_count($text, 'is', 3);
// the text is reduced to 's i', so it prints 0
echo substr_count($text, 'is', 3, 3);
// generates a warning because 5+10 > 14
echo substr_count($text, 'is', 5, 10);
// prints only 1, because it doesn't count overlapped substrings
$text2 = 'gcdgcdgcd';
echo substr_count($text2, 'gcdgcd');
?>
SEE ALSO count_chars(3), strpos(3), substr(3), strstr(3).
PHP Documentation Group SUBSTR_COUNT(3)