Windows Job To Delete Old Files

Batch file to delete files older than N days. There are very often relative datetime related questions to solve with batch file. But command line interpreter cmd. Lots of good working solutions using additional console applications or scripts have been posted already here, on other pages of Stack Overflow and on other websites. Common for operations based on datetime is the requirement to convert a datetime string to seconds since a determined day. Very common is 1. UTC. But any later day could be also used depending on the date range required to support for a specific task. Jay posted 7daysclean. But it does not take leap years correct into account. J. R. posted an add on for taking leap day in current year into account, but ignoring the other leap years since base year, i. I use since 2. 0 years static tables arrays created once with a small C function for quickly getting the number of days including leap days from 1. Windows Job To Delete Old Files' title='Windows Job To Delete Old Files' />CC. This very fast table method can be used also in batch code using FOR command. So I decided to code the batch subroutine Get. Seconds which calculates the number of seconds since 1. UTC for a datetime string passed to this routine. Windows Job To Delete Old Files' title='Windows Job To Delete Old Files' />Note Leap seconds are not taken into account as the Windows file systems also do not support leap seconds. First, the tables Days since 1. Do you know what I hate most about Windows XP Its look. Its painful combination of blue and green. So one of the first thing I do after every Windows. Hello I have the same concern. I hope a Microsoft Windows 7 guro will asnwer my concern. In Windows XP. If you make a System State backup, registry files. Windows Job To Delete Old Files' title='Windows Job To Delete Old Files' />UTC for each year including leap days. Calculating the seconds for year 2. CC. But cmd. exe use for mathematical expressions a signed 3. Therefore the maximum value is 2. FFFFFFF which is 2. Leap year information NoYes for the years 1. N N Y N N N Y N N N Y N N N Y N N N Y N. N N Y N N N Y N N N Y N N N Y N N N Y N. N N Y N N N Y N N N Y N N N Y N N N Y N. Windows Job To Delete Old Files' title='Windows Job To Delete Old Files' />Since the Windows. Windows operating system files and installed apps, it takes significant amount of disk space. In some cases, the Windows. Now you can delete the folder you wanted without Windows nagging you about permissions. Get Unlocker. If this doesnt work for some reason try using Cedrick Collomb. Windows-installation-files-in-Windows-10-step3_thumb.png' alt='Windows Job To Delete Old Files' title='Windows Job To Delete Old Files' />N N Y N N N Y N N N Y N N N Y N N N Y N. N N Y N N N Y N N N Y N N N Y N N N Y N. N N Y N N N Y N N N Y N N N Y N N N Y N. N N Y N N N Y N N N N N N N Y N N. The Moon And The Sledgehammer. Number of days to first day of each month in current year. Jan Feb Mar Apr May Jun Jul Aug Sep Oct Nov Dec. Year with 3. 65 days 0 3. Year with 3. 66 days 0 3. Converting a date to number of seconds since 1. Attention please The format of date and time strings depends on Windows region and language settings. The delimiters and the order of tokens assigned to the environment variables Day, Month and Year in first FOR loop of Get. Seconds must be adapted to local datetime format if necessary. It is necessary to adapt the date string of the environment variable if date format in environment variable DATE is different to date format used by command FOR on t. F. For example when DATE expands to Sun 0. F expands to 0. 20. PM the code below can be used with modifying line 4 to call Get. Seconds DATE 4 TIME. This results in passing to subroutine just 0. Alternatively following could be used to pass current date in correct format call Get. Seconds DATE 1. TIME. Now the last 1. Get. Seconds and therefore it does not matter if date string of environment variable DATE is with or without weekday as long as day and month are always with 2 digits in expected order, i. Here is the batch code with explaining comments which just outputs which file to delete and which file to keep in C Temp folder tree, see code of first FOR loop. Enable. Extensions Enable. Delayed. Expansion. Get seconds since 1. Free Download Gta 4 Full Version Setup Pc'>Free Download Gta 4 Full Version Setup Pc. Get. Seconds DATE TIME. Subtract seconds for 7 days from seconds value. A Last. WeekSeconds 78. For each file in each subdirectory of C Temp get last modification date. The file can be deleted if seconds. F delims F in dir A D H S B S C Temp do. Get. Seconds t. F 0. SecondsLSS Last. Week del F f. F. if Seconds LEQ Last. Week. Delete f. F. Keep f. F. rem No validation is made for best performance. So make sure that date. MMDDYYYY hh mm ss or MDYYYY h m s for English US datetime. If there is AM or PM in time string because of using 1. PM remember. rem that 1. Date. Time1. set Add. Hours0. if Date. Time AM NEQ Date. Time. set Date. TimeDate. Time AM. Date. Time PM NEQ Date. Time. set Date. TimeDate. Time PM. Add. 12. Hours1. Get year, month, day, hour, minute and second from first parameter. F tokens1 6 delims,. A in Date. Time do. For English US date MMDDYYYY or MDYYYY. DayB set MonthA set YearC. For German date DD. MM. YYYY or English UK date DDMMYYYY. DayA set MonthB set YearC. HourD set MinuteE set SecondF. Datetime is Year Month Day Hour Minute Second. Remove leading zeros from the datetime values or calculation could be wrong. Month 0,1 EQU 0 if Month 1 NEQ set MonthMonth 1. Day 0,1 EQU 0 if Day 1 NEQ set DayDay 1. Hour 0,1 EQU 0 if Hour 1 NEQ set HourHour 1. Minute 0,1 EQU 0 if Minute 1 NEQ set MinuteMinute 1. Second 0,1 EQU 0 if Second 1 NEQ set SecondSecond 1. Add 1. 2 hours for time range 0. PM to 1. 1 5. 9 5. PM. rem but keep the hour as is for 1. PM to 1. 2 5. 9 5. PM. if Add. 12. Hours 1. Hour LSS 1. 2 set A Hour1. Date. Time. set Add. Hours. rem Must use 2 arrays as more than 3. FOR. set A Index. Year 1. 97. 9. set A Index. Index. 1 3. 0. if Index. LEQ 3. 0. rem Get number of days to year for the years 1. F tokensIndex. Y in 3. DaysY. for F tokensIndex. L in Y N N N Y N N N Y N N N Y N N N Y N N N Y N N N Y N N N Y N do set Leap. YearL. rem Get number of days to year for the years 2. F tokensIndex. Y in 1. DaysY. for F tokensIndex. L in N N Y N N N Y N N N Y N N N Y N N N Y N N N Y N N N Y N N do set Leap. YearL. rem Add the days to month in year. Leap. Year N. F tokensMonth delims M in 0 3. A DaysM. for F tokensMonth delims M in 0 3. A DaysM. rem Add the complete days in month of year. A DaysDay 1. Calculate the seconds which is easy now. A SecondsDays. Hour. Minute. Second. rem Exit this subroutine. For optimal performance it would be best to remove all comments, i. And the arrays can be made also smaller, i. C Temp folder tree. Further the batch code below is optimized for 2. Enable. Delayed. Expansion. Get. Seconds DATE 1. TIME. set A Last. WeekSeconds 7. F delims F in dir A D H S B S C Temp do. Get. Seconds t. F 0. Seconds LSS Last. Week del F f. F. for F tokens1 6 delims,. A in 1 do. DayB set MonthA set YearC. HourD set MinuteE set SecondF. Month 0,1 EQU 0 if Month 1 NEQ set MonthMonth 1. Day 0,1 EQU 0 if Day 1 NEQ set DayDay 1. Hour 0,1 EQU 0 if Hour 1 NEQ set HourHour 1. Minute 0,1 EQU 0 if Minute 1 NEQ set MinuteMinute 1. Second 0,1 EQU 0 if Second 1 NEQ set SecondSecond 1. A IndexYear 2. F tokensIndex delims Y in 1. DaysY. for F tokensIndex delims L in N Y N N N do set Leap. YearL. if Leap. Year N. F tokensMonth delims M in 0 3. A DaysM. for F tokensMonth delims M in 0 3. A DaysM. set A DaysDay 1. A SecondsDays. Hour.