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datecheck.lha
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DateCheck
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DateCheck.rexx
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OS/2 REXX Batch file
|
1993-01-10
|
2KB
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63 lines
/* DateCheck version 1.01 - Check the validity of the system date */
/* Copyright © Michael Tanzer, 1992 */
/* See additional notices in accompanying documentation */
datefile = 'S:DateCheck.date' /* Identify file to contain stored date */
maxdays = 1 /* Maximum days between stored date and system date */
/* Verify option or handle 'help' request */
arg option
if words(option)>0 & option~='RESET' then do
say 'Use DateCheck to check the validity of the system date.'
say 'Format: DATECHECK <RESET>'
say 'The ''RESET'' option forces the current system date to'
say 'be stored in' datefile 'without being checked.'
exit
end
/* Make sure the necessary libraries are available */
if ~show('L','rexxsupport.library') then
call addlib('rexxsupport.library',0,-30)
if ~show('L','rexxarplib.library') then
call addlib('rexxarplib.library',0,-30)
/* Handle RESET option */
if option='RESET' then do
thisdate = date('B')
call write
exit
end
/* Compare current system date with stored date */
call open('input',datefile,'R')
if ~result then do
say 'Unable to open' datefile'.'
exit
end
lastdate = readln('input')
call close 'input'
thisdate = date('B')
if datatype(lastdate,'W') then difference = thisdate-lastdate
else difference = -1
if difference=0 then exit
if difference<0 | difference>maxdays then do
parse value date() with day . year .
date = strip(day,'L','0') date('M') year
prompt = 'The system date appears to be' date'.'
response = request(0,0,prompt,,'No problem!','I had better fix that.')
if response~='OKAY' then exit
end
call write
exit
/* Store current system date */
write:
call open('output',datefile,'W')
if ~result then do
say 'Unable to write' datefile'.'
exit
end
call writeln 'output',thisdate
call close 'output'
return