The following run-time switches affect file handling:
The record terminator switch specifies the character to be used as a record terminator in line sequential files. When -L2 (the default) is used, x"0A" is treated as the record terminator. When +L2 is used, x"0D0A" is treated as the record terminator.
When +N is used (which is the default), all characters less than x"1B" are preceded by a null byte (x"00"). If -N is used, characters less that x"1B" are treated as control characters; for example, x"1A" is treated as the end-of-file marker. If a file is created from an application running with -N, the file must be read back with an application running the same way; the same is true for files created from applications running with +N.
The tab switch is set off (-T) by default. The tab switch compresses extra spaces to tab characters (x"09"), for line sequential files. This saves space in the file. If you write a file with +T set, you must use +T when reading the file and if you write a file with -T set, you must use -T when reading the file.