# BASIC 256 - Language Documentation

en:open

## Open and Openb

### Format

open filename
open(filename)
open filenumber, filename
open(filenumber, filename)
openb filename
openb(filename)
openb filenumber, filename
openb(filenumber, filename)

### Description

Opens a file for reading and writing. The filename is specified as a string, and may be an absolute or relative path. If the file number is not specified file number zero (0) will be used.
Openb opens the file in a “binary safe” mode. This type of file open is recommended for files where the Readbyte and Writebyte statements are used for input/output.

### Note

BASIC256 may have up to 8 files open at a single time. The files are numbered from 0 to 7. Opening a file to a number while another is already open to that number will close the open file.

### See Also

Changedir, Close, Currentdir, Eof, Kill, Read, Readbyte, Readline, Reset, Write, Writebyte, Writeline, Exists, Seek, Size

en/open.txt · Last modified: 2012/10/17 22:06 by admin