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Top Forums Shell Programming and Scripting Delete File in a Directory Using a Condition Post 302849981 by Don Cragun on Tuesday 3rd of September 2013 04:56:44 PM
Old 09-03-2013
Quote:
Originally Posted by shekhar2010us

---------- Post updated at 04:44 PM ---------- Previous update was at 04:41 PM ----------

Don, The script that I provided will be run everyday, because the file creation is a continuous process.
I was just pointing out that if you run your script at 10pm, there may be a lot more than 20 files in the 22 and 23 hours of that day.

Even if you run your script at 2359, files may still be created in the last minute of the day that will leave you with more than 20 files in the 23 hour by the time you get to midnight. And, if this script is run by cron, there is no guarantee that if you schedule it for 2359 (or even 2330) that it will start running before midnight.
 

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DATE(1) 						      General Commands Manual							   DATE(1)

NAME
date - print or set the date and time SYNOPSIS
date [-qsu] [[MMDDYY]hhmm[ss]] [+format] OPTIONS
-q Read the date from stdin -s Set the time (implicit for -q or a date string) -u Print the date as GMT -t Use this number of seconds instead of current time EXAMPLES
date # Print the date and time date 0221921610 # Set date to Feb 21, 1992 at 4:10 p.m. DESCRIPTION
With the -q flag or a numeric argument, date sets the GMT time and date. MMDDYY refers to the month, day, and year; hhmmss refers to the hour, minute and second. Each of the six fields must be exactly two digits, no more and no less. date always display the date and time, with the default format for the system. The -u flag request GMT time instead of local time. A format may be specified with a + followed by a printf-like string with the following options: %% % character %A Name of the day %B Name of the month %D mm/dd/yy %H Decimal hour on 2 digits %I Decimal hour modulo 12 on 2 digits %M Decimal minute on 2 digits %S Decimal seconds on 2 digits %T HH:MM:SS %U Decimal week number, Sunday being first day of week %W Decimal week number, Monday being first day of week %X Same as %T %Y Decimal year on 4 digits %Z Time Zone (if any) %a Abbreviated name of the day %b Abbreviated name of the month %c Appropriate date & time (default format) %d Decimal day of the month on 2 digits %e Same as %d, but a space replaces leading 0 %h Same as %b %j Decimal dey of the year on 3 digits %m Decimal month on 2 digits %n Newline character %p AM or PM %r 12-hour clock time with AM/PM %s Number of seconds since the epoch %t Tab character %w Decimal day of the week (0=Sunday) %x Same as %D %y Decimal year on 2 digits SEE ALSO
time(2), ctime(3), readclock(8). DATE(1)
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