Out of curiosity, I also tried some testing myself. On a file with 250 lines there's no difference.
But on a file with 1000 lines, cut was faster by 1 sec.
On a file with 10000 lines, the result is the same:
Code:
FILE
450000 Feb 6 14:32 test.file
CONTENTS
the quick brown fox jumped over the lazy dog
the quick brown fox jumped over the lazy dog
the quick brown fox jumped over the lazy dog
the quick brown fox jumped over the lazy dog
the quick brown fox jumped over the lazy dog
the quick brown fox jumped over the lazy dog
the quick brown fox jumped over the lazy dog
the quick brown fox jumped over the lazy dog
the quick brown fox jumped over the lazy dog
the quick brown fox jumped over the lazy dog
...
...
USING AWK
real 0m0.07s
user 0m0.05s
sys 0m0.10s
USING CUT
real 0m0.02s
user 0m0.01s
sys 0m0.02s
I'm using HP-UX. Maybe awk is better for files far larger than 10000 lines while cut is better for smaller files. Or maybe because of their differences in primary use. I'm not sure about this though. Need to do some more tests.
Last edited by angheloko; 02-06-2009 at 03:03 AM..
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Hi, I'm very new to scripting.
grep $s $filename | awk '{print $2}' | cut -c 1-8
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i was trying to work on program to look for users never log on sever.. using awk
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comm -13 /tmp/users$$
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with cut it is not working
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x, number of apperances =
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Discussion started by: kg_gaurav
1 Replies
LEARN ABOUT PHP
hash_final
HASH_FINAL(3) 1 HASH_FINAL(3)hash_final - Finalize an incremental hash and return resulting digestSYNOPSIS
string hash_final (resource $context, [bool $raw_output = false])
DESCRIPTION PARAMETERS
o $context
- Hashing context returned by hash_init(3).
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_final(3) example
<?php
$ctx = hash_init('sha1');
hash_update($ctx, 'The quick brown fox jumped over the lazy dog.');
echo hash_final($ctx);
?>
The above example will output:
c0854fb9fb03c41cce3802cb0d220529e6eef94e
SEE ALSO hash_init(3), hash_update(3), hash_update_stream(3), hash_update_file(3).
PHP Documentation Group HASH_FINAL(3)