10-28-2013
sir,
code
awk '/Output view:/{f=1; $0=$0 p; p=x} !f{p=p RS $0} f' file
works fine. But can you explain me step by step by step how it works.
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RANGE(3) 1 RANGE(3)
range - Create an array containing a range of elements
SYNOPSIS
array range (mixed $start, mixed $end, [number $step = 1])
DESCRIPTION
Create an array containing a range of elements.
PARAMETERS
o $start
- First value of the sequence.
o $end
- The sequence is ended upon reaching the $end value.
o $step
- If a $step value is given, it will be used as the increment between elements in the sequence. $step should be given as a posi-
tive number. If not specified, $step will default to 1.
RETURN VALUES
Returns an array of elements from $start to $end, inclusive.
EXAMPLES
Example #1
range(3) examples
<?php
// array(0, 1, 2, 3, 4, 5, 6, 7, 8, 9, 10, 11, 12)
foreach (range(0, 12) as $number) {
echo $number;
}
// The step parameter
// array(0, 10, 20, 30, 40, 50, 60, 70, 80, 90, 100)
foreach (range(0, 100, 10) as $number) {
echo $number;
}
// Usage of character sequences
// array('a', 'b', 'c', 'd', 'e', 'f', 'g', 'h', 'i');
foreach (range('a', 'i') as $letter) {
echo $letter;
}
// array('c', 'b', 'a');
foreach (range('c', 'a') as $letter) {
echo $letter;
}
?>
NOTES
Note
Character sequence values are limited to a length of one. If a length greater than one is entered, only the first character is
used.
SEE ALSO
shuffle(3), array_fill(3), foreach.
PHP Documentation Group RANGE(3)