| Language Reference |
External Files Functions
| DROPNOTE | deletes a note marker from a SAS data set or an external file and returns a value |
| EXIST | verifies the existence of a SAS data library member |
| FAPPEND | appends the current record to the end of an external file and returns a value |
| FCLOSE | closes an external file, directory, or directory member, and returns a value |
| FCOL | returns the current column position in the File Data Buffer (FDB) |
| FDELETE | deletes an external file or an empty directory |
| FEXIST | verifies the existence of an external file associated with a fileref and returns a value |
| FGET | copies data from the File Data Buffer (FDB) into a variable and returns a value |
| FILEEXIST | verifies the existence of an external file by its physical name and returns a value |
| FILENAME | assigns or deassigns a fileref for an external file, directory, or output device and returns a value |
| FILEREF | verifies that a fileref has been assigned for the current SAS session and returns a value |
| FINFO | returns the value of a file information item |
| FNOTE | identifies the last record that was read and returns a value that FPOINT can use |
| FOPEN | opens an external file and returns a file identifier value |
| FOPTNAME | returns the name of an item of information about a file |
| FOPTNUM | returns the number of information items that are available for an external file |
| FPOINT | positions the read pointer on the next record to be read and returns a value |
| FPOS | sets the position of the column pointer in the File Data Buffer (FDB) and returns a value |
| FPUT | moves data to the File Data Buffer (FDB) of an external file, starting at the FDB's current column position, and returns a value |
| FREAD | reads a record from an external file into the File Data Buffer (FDB) and returns a value |
| FREWIND | positions the file pointer to the start of the file and returns a value |
| FRLEN | returns the size of the last record read, or, if the file is opened for output, returns the current record size |
| FSEP | sets the token delimiters for the FGET function and returns a value |
| FWRITE | writes a record to an external file and returns a value |
| MOPEN | opens a file by directory identifier and member name, and returns the file identifier or a 0 |
| PATHNAME | returns the physical name of a SAS data library or of an external file, or returns a blank |
| SYSMSG | returns the text of error messages or warning messages from the last data set or external file function execution |
| SYSRC | returns a system error number |
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