PURGE.NLM
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Program PURGE periodicaly scans the file server for salvageable files and
purges them.

Syntax:  LOAD  PURGE  [/P<startPath>] [/L<size>] [/S<hour> | /U]
                      [/O<days>] {<mask>}*

Where:   P<path>   ...  only this directory & its subdirs will be purged.
			Path must include volume name.
         S<num>    ...  starting hour of purging <0..24). Default is 20.
         U         ...  purge will be done immediately and module then quits
         L<size>   ...  maximal size of log file. Default is 200000.
         O<days>   ...  age of file in days (>=0) to be purged. Default is 7.
         {<mask>}* ...  list of file extension masks to purge. Default
                        is '*' (meaning *.* will be purged).

There must be used at least one parameter. Zero length files are purged 
immediately.


!-!-!-!-!-!-!-!-!-!-!-!-!-!-!-!-!-!-!-!-!-!-!-!-!-!-!-!-!-!-!-!-!-!

WARNING: 

Parameter /O and file masks make non-exclusive OR !!! 

So '/o7 *' (== '/o7', as * is default) will purge all files now ! 
You MUST specify some extension to avoid it !

!-!-!-!-!-!-!-!-!-!-!-!-!-!-!-!-!-!-!-!-!-!-!-!-!-!-!-!-!-!-!-!-!-!


Example:  LOAD PURGE /S22 /O7 TMP BAK

          Purge.nlm starts its scan at 10pm and all files with zero length,
          extensions TMP or BAK or beeing deleted seven days ago will be
          purged.

  Program schedules itself as low priority task, but I do not recommend to 
start it in production time or with backup utilities.

  Program creates log-file SYS:SYSTEM\PURGE.LOG into which important events
are logged. Names of purged off files are not logged. At start of each purging
cycle, log size is tested on size. If configured size is exceeded, log is 
renamed to PURGE.OLD and new PURGE.LOG is opened. Old PURGE.OLD is deleted.

  On every start does program one scan on all volumes and then go asleep
until next day.


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Notes:

  - PURGE is cardware. See file LICENSE for conditions.


History:
 v1.00a: 0-length files purged immediately   
 v1.00b: path length tested   
 v1.01 : start path parameter    
980306
 v1.02 : info changed
990204
 v1.03 : added parameters /U and /L, corrected little bugs in log
	 printing and /P handling (ingnoring /Pxxx:)
990531
 v1.04 : end time of purge cycle is written to logfile
990805
         change from freeware to cardware
001025
         Changed PURGE.TXT to emphasize default extension '*' problem 

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If you have any problem or any suggestion concerning the further
development of the program, please contact Petr Jaklin:

	Internet:   jaklin@3net.cz
	fax	    +420 417 26859

New versions and other utilities are available on URL:

	http://www.3net.cz/software/