MPE/iX Shell and Utilities Reference Manual, Vol 2

vi(1) MPE/iX Shell and Utilities vi(1)
The cursor keys do not work.
Although the current MPE/iX implementation of the vi command can read non-byte
stream files, it can only write byte stream files. As a result, if you edit a non-byte stream
file with vi and save it, that file is now a byte stream file. File characteristics like file
code, record size, and so forth are not preserved by this conversion.
For more information on how the current
MPE/iX implementation may affect the operation of
this utility, see Appendix A, MPE/iX Implementation Considerations.
SEE ALSO
ctags(1), ed(1), ex(1) jobs(1), mesg(1), sed(1), write(1), regexp(3),
1-690 Commands and Utilities