03-20-2009
excluding two or more groups of strings from printing
sample text:
001 the quick brown fox jumps 987 over a lazy dog
002 the quick brown fox jumps 999 over a lazy dog
003 the quick brown cow jumps 888 over a lazy dog
004 the quick brown fox jumps 777 over a lazy dog
005 the quick brown fox jumps 666 over a lazy cat
i want to do something like:
cat text | egrep -v ""brown fox"|"lazy dog"" (ofcourse this doesn't work)
which should yield:
003 the quick brown cow jumps 888 over a lazy dog
005 the quick brown fox jumps 666 over a lazy cat
TIA,
Marc
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LEARN ABOUT PHP
hash_hmac_file
HASH_HMAC_FILE(3) 1 HASH_HMAC_FILE(3)
hash_hmac_file - Generate a keyed hash value using the HMAC method and the contents of a given file
SYNOPSIS
string hash_hmac_file (string $algo, string $filename, string $key, [bool $raw_output = false])
DESCRIPTION
PARAMETERS
o $algo
- Name of selected hashing algorithm (i.e. "md5", "sha256", "haval160,4", etc..) See hash_algos(3) for a list of supported algo-
rithms.
o $filename
- URL describing location of file to be hashed; Supports fopen wrappers.
o $key
- Shared secret key used for generating the HMAC variant of the message digest.
o $raw_output
- When set to TRUE, outputs raw binary data. FALSE outputs lowercase hexits.
RETURN VALUES
Returns a string containing the calculated message digest as lowercase hexits unless $raw_output is set to true in which case the raw
binary representation of the message digest is returned.
EXAMPLES
Example #1
hash_hmac_file(3) example
<?php
/* Create a file to calculate hash of */
file_put_contents('example.txt', 'The quick brown fox jumped over the lazy dog.');
echo hash_hmac_file('md5', 'example.txt', 'secret');
?>
The above example will output:
7eb2b5c37443418fc77c136dd20e859c
SEE ALSO
hash_algos(3), hash_hmac(3), hash_file(3).
PHP Documentation Group HASH_HMAC_FILE(3)