- file-access-time FILEprocedure
- file-change-time FILEprocedure
- file-modification-time FILEprocedure
- set! (file-modification-time FILE) SECONDSprocedure
Returns time (in seconds) of the last access, modification or change of FILE. FILE may be a filename or a file-descriptor. If the file does not exist, an error is signaled.
file-access-time, file-change-time and file-modification-time also accept a port object as their argument.
(set! (file-modification-time FILE) SECONDS) sets the access- and modification time of FILE to SECONDS.