Main sections
DOESFILEEXIST()
ok#=DOESFILEEXIST(file$)
Determines if file$ exists.
Sample:
ok=DOESFILEEXIST("test.txt")
IF ok
PRINT "Test.txt exists", 100, 100
ELSE
PRINT "Test.txt does not exist", 100, 100
ENDIF
ok=DOESFILEEXIST("test.txt")
IF ok
PRINT "Test.txt exists", 100, 100
ELSE
PRINT "Test.txt does not exist", 100, 100
ENDIF