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Full Discussion: Substring using sed or awk
Top Forums Shell Programming and Scripting Substring using sed or awk Post 302376594 by jaduks on Tuesday 1st of December 2009 08:47:13 PM
Old 12-01-2009
Using bash parameter substitution techniques:

1)
________________
${string##substring}
It deletes the "longest" match of $substring from 'front' of $string.
_________________
Code:
$ var="REPLYFILE=myfile.txt"

$ echo ${var##*=}
myfile.txt

or

$ echo $var | awk '{print $NF}' FS=\=
myfile.txt

2)
_________________________
${string%substring}
It deletes shortest match of $substring from 'back' of $string.
_________________________
Code:
$ var="myfile.txt.gz.20091120.enc"

$ echo ${var%gz*}
myfile.txt.

$ echo ${var%gz*}gz
myfile.txt.gz

Regards,
Jadu
 

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FPRINTF(3)								 1								FPRINTF(3)

fprintf - Write a formatted string to a stream

SYNOPSIS
int fprintf (resource $handle, string $format, [mixed $args], [mixed $...]) DESCRIPTION
Write a string produced according to $format to the stream resource specified by $handle. PARAMETERS
o $handle -A file system pointer resource that is typically created using fopen(3). o $format - See sprintf(3) for a description of $format. o $args - o $... - RETURN VALUES
Returns the length of the string written. EXAMPLES
Example #1 fprintf(3): zero-padded integers <?php if (!($fp = fopen('date.txt', 'w'))) { return; } fprintf($fp, "%04d-%02d-%02d", $year, $month, $day); // will write the formatted ISO date to date.txt ?> Example #2 fprintf(3): formatting currency <?php if (!($fp = fopen('currency.txt', 'w'))) { return; } $money1 = 68.75; $money2 = 54.35; $money = $money1 + $money2; // echo $money will output "123.1"; $len = fprintf($fp, '%01.2f', $money); // will write "123.10" to currency.txt echo "wrote $len bytes to currency.txt"; // use the return value of fprintf to determine how many bytes we wrote ?> SEE ALSO
printf(3), sprintf(3), sscanf(3), fscanf(3), vsprintf(3), number_format(3). PHP Documentation Group FPRINTF(3)
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