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Top Forums UNIX for Dummies Questions & Answers To Extract words from File based on Position Post 302399306 by thillai_selvan on Saturday 27th of February 2010 04:21:39 AM
Old 02-27-2010
Code:
echo "hai this is for testing" | cut -b 4-7.

You can also use the above command to extract a range of characters from the string or from input file

---------- Post updated at 02:51 PM ---------- Previous update was at 02:38 PM ----------

Code:
IFS="\n"
for line in `cat input_file`
do
        echo ${line:5:5}
done

And also the above script will extract the characters from the 5th position up to the next 5 characters. Which means that it is extracting from 5 to 10 characters
 

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WORDWRAP(3)								 1							       WORDWRAP(3)

wordwrap - Wraps a string to a given number of characters

SYNOPSIS
string wordwrap (string $str, [int $width = 75], [string $break = "0], [bool $cut = false]) DESCRIPTION
Wraps a string to a given number of characters using a string break character. PARAMETERS
o $str - The input string. o $width - The number of characters at which the string will be wrapped. o $break - The line is broken using the optional $break parameter. o $cut - If the $cut is set to TRUE, the string is always wrapped at or before the specified $width. So if you have a word that is larger than the given width, it is broken apart. (See second example). When FALSE the function does not split the word even if the $width is smaller than the word width. RETURN VALUES
Returns the given string wrapped at the specified length. EXAMPLES
Example #1 wordwrap(3) example <?php $text = "The quick brown fox jumped over the lazy dog."; $newtext = wordwrap($text, 20, "<br /> "); echo $newtext; ?> The above example will output: The quick brown fox<br /> jumped over the lazy<br /> dog. Example #2 wordwrap(3) example <?php $text = "A very long woooooooooooord."; $newtext = wordwrap($text, 8, " ", true); echo "$newtext "; ?> The above example will output: A very long wooooooo ooooord. Example #3 wordwrap(3) example <?php $text = "A very long woooooooooooooooooord. and something"; $newtext = wordwrap($text, 8, " ", false); echo "$newtext "; ?> The above example will output: A very long woooooooooooooooooord. and something SEE ALSO
nl2br(3), chunk_split(3). PHP Documentation Group WORDWRAP(3)
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