z/OS V1R9.0 UNIX System Services Command ... - Christian Grothoff

Usage notes
Related Information
inetd
provides the user connection to the socket, and the second is the user’s
shell. In this mode, all shell functions behave in a manner conformant to the
standards.
If you specify –m, the rlogin process and the shell process share the same
address space using z/OS UNIX System Services support for multiple
processes in an address space. Using –m has the potential of doubling the
number of users supported via rlogin.
Note: If you issued rlogind with the –m option, the shell process cannot
execute a setuid program that replaces the shell. This causes
functions like newgrp to fail. In this situation, you may want to create
a secondary shell that runs in its own address space.
–n Specifies that the transport-level keep-alive messages be disabled. The
messages are enabled by default.
1. The rlogind program normally translates all error and warning messages to
ASCII and then sends them to the originating terminal.
However, when the C runtime library writes error messages, the rlogind
program cannot intercept them to translate the messages to ASCII. Therefore,
these messages are written to the file /tmp/rlogind.stderr or
/tmp/rlogind2.stderr.
These two files must be predefined in /tmp, and owned by the superuser (UID
0). The files should have permissions of rw–rw–rw or rw––w––w–. In addition,
the sticky bit must be set for the /tmp directory so that these files (and other
files in /tmp) cannot be removed except by the files’ owners or the superuser.
2. rlogind is not affected by the locale information specified in locale-related
environment variables.
rm — Remove a directory entry
Format
Description
rm [–fiRrv] file ...
rlogind
rm removes files (provided that it is a valid pathname). If you specify either . or ..
as the final component of the pathname for a file, rm displays an error message
and goes to the next file. If a file does not have write permission set, rm asks you if
you are sure you want to delete the file; type the yes expression defined in
LC_MESSAGES (the English expression is typically y or yes) if you really want it
deleted.
Restriction: A file can be removed by any user who has write permission to the
directory containing the file, unless that directory has its sticky bit turned on. If the
file is in a directory whose sticky bit is turned on, only the file owner, the owner of
the directory, or a superuser can remove the file.
Chapter 2. Shell command descriptions 531