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Top Forums Shell Programming and Scripting Need help in a time-grep Script Post 302290398 by otheus on Monday 23rd of February 2009 06:37:49 AM
Old 02-23-2009
I suggest you download and install the logwatch utilities and also the Perl Date::Manip module from CPAN. Combined, you can enter a date or time range and get back a regular expression which will match exactly and only that time range. You can do it by hand, too, with the perl re like this:
Code:
$_ =~ m/^(Feb 20, 2009 03:5[6-9]:..|Feb 20, 2009 04:0[01]:..)/;

If you want to get until 4:12, you'll need a third sub-expression:
Code:
$_ =~ m/^(Feb 20, 2009 03:5[6-9]:..|Feb 20, 2009 04:0[0-9]:..|Feb 20, 2009 04:1[012]:..)/;

Do you see the pattern now?
 

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TIME_SLEEP_UNTIL(3)							 1						       TIME_SLEEP_UNTIL(3)

time_sleep_until - Make the script sleep until the specified time

SYNOPSIS
bool time_sleep_until (float $timestamp) DESCRIPTION
Makes the script sleep until the specified $timestamp. PARAMETERS
o $timestamp - The timestamp when the script should wake. RETURN VALUES
Returns TRUE on success or FALSE on failure. CHANGELOG
+--------+---------------------------------------------------+ |Version | | | | | | | Description | | | | +--------+---------------------------------------------------+ | 5.3.0 | | | | | | | This function is now available on Windows plat- | | | forms. | | | | +--------+---------------------------------------------------+ ERRORS
/EXCEPTIONS If the specified $timestamp is in the past, this function will generate a E_WARNING. EXAMPLES
Example #1 A time_sleep_until(3) example <?php //returns false and generates a warning var_dump(time_sleep_until(time()-1)); // may only work on faster computers, will sleep up to 0.2 seconds var_dump(time_sleep_until(microtime(true)+0.2)); ?> NOTES
Note All signals will be delivered after the script wakes up. SEE ALSO
sleep(3), usleep(3), time_nanosleep(3), set_time_limit(3). PHP Documentation Group TIME_SLEEP_UNTIL(3)
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