08-10-2011
Unix: list out Pattern occurrence (count)
Need to search a pattern occurrence (count) in a specified file.
Below is the details
$ cat fruits
apple apple
ball ball
apple
ball ball ball
apple apple apple
cat cat
cat cat cat
apple
apple
Note: If I'll use the grep command with -c option then it'll count the 1st occurrence in the lines but not the repeated occurrence like
$ grep -ic apple fruits
5
but here apple is occurring 8 times.
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LEARN ABOUT PHP
array_pop
ARRAY_POP(3) 1 ARRAY_POP(3)
array_pop - Pop the element off the end of array
SYNOPSIS
mixed array_pop (array &$array)
DESCRIPTION
array_pop(3) pops and returns the last value of the $array, shortening the $array by one element.
Note
This function will reset(3) the array pointer of the input array after use.
PARAMETERS
o $array
- The array to get the value from.
RETURN VALUES
Returns the last value of $array. If $array is empty (or is not an array), NULL will be returned.
ERRORS
/EXCEPTIONS
This function will produce an error of level E_WARNING when called on a non-array.
EXAMPLES
Example #1
array_pop(3) example
<?php
$stack = array("orange", "banana", "apple", "raspberry");
$fruit = array_pop($stack);
print_r($stack);
?>
After this, $stack will have only 3 elements:
Array
(
[0] => orange
[1] => banana
[2] => apple
)
and raspberry will be assigned to $fruit.
SEE ALSO
array_push(3), array_shift(3), array_unshift(3).
PHP Documentation Group ARRAY_POP(3)