If condition to check one file newer than the other - first file name uncertain
Dear All,
I'm new to unix scripting. I'm trying to write an utility script which has to check if one file is newer than another one. The condition is I dont know the full name of the first file. I searched google and this forum for any such examples, but couldn't find any or may be I would have missed it.
I wrote this simple check using if, but it is not working.
If i give a definite file name, it prints "file found", but when I use an *, even if the file is present it says "file not found"
I will have to use the wildcard charcater * bcoz each time the text following "xyz" is different.
Could anyone please tell me how to fix this.
Your help is much appreciated.
Thanks
Last edited by Yogesh Sawant; 07-10-2009 at 04:27 AM..
Reason: added code tags
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Dear All,
I'm new to unix scripting. I'm trying to write an utility script which has to check if one file is newer than another one. $3 $4 $5 $6 are files .txt. Help me please.
for i in $3 $4 $5 $6
do
if
then
echo "$1 is newer than $i"
else
echo "$i is newer than $1"
fi (9 Replies)
I only want the file copied if it is newer. But it still copies the file?
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Discussion started by: drew77
5 Replies
LEARN ABOUT PHP
apc_cas
APC_CAS(3) 1 APC_CAS(3)apc_cas - Updates an old value with a new valueSYNOPSIS
bool apc_cas (string $key, int $old, int $new)
DESCRIPTION apc_cas(3) updates an already existing integer value if the $old parameter matches the currently stored value with the value of the $new
parameter.
PARAMETERS
o $key
- The key of the value being updated.
o $old
- The old value (the value currently stored).
o $new
- The new value to update to.
RETURN VALUES
Returns TRUE on success or FALSE on failure.
EXAMPLES
Example #1
apc_cas(3) example
<?php
apc_store('foobar', 2);
echo '$foobar = 2', PHP_EOL;
echo '$foobar == 1 ? 2 : 1 = ', (apc_cas('foobar', 1, 2) ? 'ok' : 'fail'), PHP_EOL;
echo '$foobar == 2 ? 1 : 2 = ', (apc_cas('foobar', 2, 1) ? 'ok' : 'fail'), PHP_EOL;
echo '$foobar = ', apc_fetch('foobar'), PHP_EOL;
echo '$f__bar == 1 ? 2 : 1 = ', (apc_cas('f__bar', 1, 2) ? 'ok' : 'fail'), PHP_EOL;
apc_store('perfection', 'xyz');
echo '$perfection == 2 ? 1 : 2 = ', (apc_cas('perfection', 2, 1) ? 'ok' : 'epic fail'), PHP_EOL;
echo '$foobar = ', apc_fetch('foobar'), PHP_EOL;
?>
The above example will output something similar to:
$foobar = 2
$foobar == 1 ? 2 : 1 = fail
$foobar == 2 ? 1 : 2 = ok
$foobar = 1
$f__bar == 1 ? 2 : 1 = fail
$perfection == 2 ? 1 : 2 = epic fail
$foobar = 1
SEE ALSO apc_dec(3), apc_store(3).
PHP Documentation Group APC_CAS(3)