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Top Forums UNIX for Dummies Questions & Answers modify a particular pattern starting from second line of the search pattern Post 302246014 by imas on Sunday 12th of October 2008 09:25:29 AM
Old 10-12-2008
modify a particular pattern starting from second line of the search pattern

Hi,

I am new to this forum and i would like to get help in this issue.

I have a file 1.txt as shown:

apple
banana
orange
apple
grapes
banana
orange
grapes
orange
....

Now i would like to search for pattern say apple or orange and then put a # at the beginning of the pattern from second line i.e, for the first matched pattern/first line ignore and then from second matched pattern/second line and so on put a # at the beginning of the pattern.

Your help is appreciated.

Thanks.
 

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ARRAY_SHIFT(3)								 1							    ARRAY_SHIFT(3)

array_shift - Shift an element off the beginning of array

SYNOPSIS
mixed array_shift (array &$array) DESCRIPTION
array_shift(3) shifts the first value of the $array off and returns it, shortening the $array by one element and moving everything down. All numerical array keys will be modified to start counting from zero while literal keys won't be touched. Note This function will reset(3) the array pointer of the input array after use. PARAMETERS
o $array - The input array. RETURN VALUES
Returns the shifted value, or NULL if $array is empty or is not an array. EXAMPLES
Example #1 array_shift(3) example <?php $stack = array("orange", "banana", "apple", "raspberry"); $fruit = array_shift($stack); print_r($stack); ?> The above example will output: Array ( [0] => banana [1] => apple [2] => raspberry ) and orange will be assigned to $fruit. SEE ALSO
array_unshift(3), array_push(3), array_pop(3). PHP Documentation Group ARRAY_SHIFT(3)
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