The following table provides summary descriptions of the AutoLISP file-handling functions.
|
File-handling functions |
|
|---|---|
|
Function |
Description |
|
(close file-desc) |
Closes an open file |
|
(findfile filename) |
Searches the AutoCAD library path for the specified file |
|
(findtrustedfile filename) |
Searches the AutoCAD trusted file paths for the specified file |
|
(open filename mode) |
Opens a file for access by the AutoLISP I/O functions |
|
(read-char [file-desc]) |
Returns the decimal ASCII code representing the character read from the keyboard input buffer or from an open file |
|
(read-line [file-desc]) |
Reads a string from the keyboard or from an open file |
|
(vl-directory-files [ directory pattern directories]) |
Lists all files in a given directory |
|
(vl-file-copy "source-filename" "destination-filename" [append]) |
Copies or appends the contents of one file to another file |
|
(vl-file-delete "filename") |
Deletes a file |
|
(vl-file-directory-p "filename") |
Determines if a file name refers to a directory |
|
(vl-file-rename "old-filename" "new-filename") |
Renames a file |
|
(vl-file-size "filename") |
Determines the size of a file, in bytes |
|
(vl-file-systime "filename") |
Returns last modification time of the specified file |
|
(vl-filename-base "filename") |
Returns the name of a file, after stripping out the directory path and extension |
|
(vl-filename-directory "filename") |
Returns the directory path of a file, after stripping out the name and extension |
|
(vl-filename-extension "filename") |
Returns the extension from a file name, after stripping out the rest of the name |
|
(vl-filename-mktemp ["pattern" "directory" "extension"]) |
Calculates a unique file name to be used for a temporary file |
|
(write-char num [file-desc]) |
Writes one character to the screen or to an open file |
|
(write-line string [file-desc]) |
Writes a string to the screen or to an open file |