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Full Discussion: Adding one day to a date
Top Forums Shell Programming and Scripting Adding one day to a date Post 302952450 by Don Cragun on Wednesday 19th of August 2015 06:29:05 AM
Old 08-19-2015
The value of t_date in your script will not magically become the last day in some previous month unless something explicitly sets it to that value. Nothing in the script you have shown us sets the variable t_date to any value.

The ways you can calculate relative dates vary considerably from system to system and shell to shell.

What operating system are you using?

Do you have access to a 1993 or later version of the Korn shell (ksh93 or a ksh with a version later than 1993)?
 

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LEARN ABOUT DEBIAN

nnstats

NNSTATS(1m)															       NNSTATS(1m)

NAME

       nnstats - display nnmaster collection and expire statistics

SYNOPSIS

       nnstats [ -lt ] [ -d month day ] [ -m month ] [ logfile ]...

DESCRIPTION

       nnstats	will  extract  the collection (C) and expiration (X) entries from the log file and calculate total and average number of articles,
       groups and elapsed time per day, per month, or for the duration of the whole log file.

       Normally only a summary for the specified period is printed.  If -l is specified, the statistics  for  each  day  in  the  period  is  also
       printed, and if -t is specified the summary is not printed.

       Normally the statistics is collected for all days in the log files (or the current log file if one is not specified).

       If  "-m	month" is specified, the statistics for that month is calculated.  The month is specified in normal date notation, i.e. a capital-
       ized three letter abbreviation like Jan, Feb, ...

       If "-d month day" is specified, the statistics for that date only is calculated and printed.

FILES

       ../Log	The log file

SEE ALSO

       nn(1), nnusage(1M), nnadmin(1M), nnmaster(8)

NOTES

       If nnmaster is run with options -LCX, nnstats will not work, because the necessary entries are not written to the log file.

AUTHORS

       Mark Moraes <moraes@csri.toronto.edu>
       Kim F. Storm <storm@texas.dk>

4th Berkeley Distribution					    Release 6.6 						       NNSTATS(1m)
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