lispdoc - results for delete-file

(delete-file file)
Function: Delete the specified FILE. If FILE is a stream, on Windows the stream is closed immediately. On Unix plaforms the stream remains open, allowing IO to continue: the OS resources associated with the deleted file remain available till the stream is closed as per standard Unix unlink() behaviour.
Example:
(defun wipe-file (filename)
  "deletes the file named by filename"
  (let ((fptr (probe-file filename)))
    (when fptr
      (when-verbose
       (format t "Wiping file ~a~%" filename))
      (delete-file fptr))))
Mentioned in:
CLtL2 - 23.3. Renaming, Deleting, and Other File Operations
HyperSpec - Function DELETE-FILE
PCL - interacting with the file system
(ql-util:delete-file-if-exists pathname)
Undocumented
  
(delete-if predicate sequence &rest args &key from-end (start 0) (key nil)
 (end nil) (count nil))
Function: Return a sequence formed by destructively removing the elements satisfying the specified PREDICATE from the given SEQUENCE.
 Mentioned in:
HyperSpec - Function REMOVE, REMOVE-IF, REMOVE-IF-NOT, DELETE, DELETE-IF, DELETE-IF-NOT
On Lisp - Common Lisp Evolves
PCL - destructive operations
Successful Lisp - chapter12
(delete-if-not predicate sequence &rest args &key from-end (start 0) (end nil)
 (key nil) (count nil))
Function: Return a sequence formed by destructively removing the elements not satisfying the specified PREDICATE from the given SEQUENCE.
 Mentioned in:
HyperSpec - Function REMOVE, REMOVE-IF, REMOVE-IF-NOT, DELETE, DELETE-IF, DELETE-IF-NOT
PCL - destructive operations
Successful Lisp - chapter12
(delete-package package-designator)
Function: Delete the package designated by PACKAGE-DESIGNATOR from the package system data structures.
 Mentioned in:
CLtL2 - 11.2. Package Names
CLtL2 - 11.7. Package System Functions and Variables
HyperSpec - Function DELETE-PACKAGE