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Full Discussion: Listing tomorrows date
Top Forums UNIX for Advanced & Expert Users Listing tomorrows date Post 302331957 by theninja on Tuesday 7th of July 2009 05:04:07 PM
Old 07-07-2009
Listing tomorrows date

I am writing a script to strip data from a log, strip last month and empty the log for the comming month. It works great at the moment, but during testing I decided to change the date to 12/31 and when I ran it, it did not find tomorrows date. Further testing revealed that no dbl digit month would pick up the next months date.

I am using "TZ=CST6CDT-24 date +%d" to list tomorrows date, ie...

Code:
# # date 07311300
Fri Jul 31 13:00:18 CDT 2009
# TZ=CST6CDT-24 date +%d
01


I can set the date to 0731 and it works fine, but if I do a month with dbl digits (10, 11, 12) it returns like below....

Code:
# date 10311300
Sat Oct 31 13:00:22 CDT 2009
# TZ=CST6CDT-24 date +%d
31

This works for every day except the last day of the month on dbl digit months.

Does anyone have an explanation?

Here is the actual script...

Code:
#! /bin/ksh
# TZ=CST+24 date +%Y-%m-%d (yesterday)
# TZ=CST-24 date +%Y-%m-%d (tomorrow)

day=$(date '+%d')
month=`TZ=CST6CDT+24 date +%m`
year=`TZ=CST6CDT+24 date +%Y`

if test `TZ=CST6CDT-24 date +%d` = 01; then
echo $month
echo $year
        grep $month/[0-9][0-9]/$year /tmp/ftp.log    > ftp.log.$year.$month
        >ftp.log
fi

Thanks
Dave
 

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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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