file-write-date

file-write-date Function

Syntax:

file-write-date pathspec → date

Arguments and Values:

pathspec—a pathname designator .

date—a universal time or nil.

Description:

Returns a universal time representing the time at which the file specified by pathspec was last written (or created), or returns nil if such a time cannot be determined.

Examples:

(with-open-file (s "noel.text" 
		   :direction :output :if-exists :error) 
  (format s "~&Dear Santa,~2%I was good this year. ~ 
Please leave lots of toys.~2%Love, Sue~ 
 
 
~2%attachments: milk, cookies~%") 
  (truename s)) 
→ #P"CUPID:/susan/noel.text" 
(with-open-file (s "noel.text") 
  (file-write-date s)) 
→ 2902600800 

Affected By:

The host computer’s file system.

Exceptional Situations:

An error of type file-error is signaled if pathspec is wild.

An error of type file-error is signaled if the file system cannot perform the requested operation.

See Also:

Section 25.1.4.2 (Universal Time), Section 19.1.2 (Pathnames as Filenames)

Expanded Reference: file-write-date

tip

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(file-write-date )