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Change to a new group
newgrp [-l|-s] [group]
Neutrino
- -l
- (“el”) Change the environment to what would be expected
if the user actually logged in again.
- -s
- Set the group ID of the parent; don't exec() a login shell.
- group
- A group name.
The newgrp utility starts a new shell with a new
real and effective group ID. The user remains logged in and the
current directory doesn't change, but file access permissions
are based on the new real and effective group IDs.
|
This utility needs to have the setuid (“set user ID”)
bit set in its permissions.
If you use
mkefs,
mketfs,
or
mkifs
on a Windows host to include this utility in an image,
use the perms attribute to specify its permissions explicitly,
and the uid and gid attributes to set the ownership
correctly. |
If no operands are specified, newgrp changes the group ID
back to the group identified in the invoking user's entry
in /etc/passwd.
If you don't use the -l option, the environment variables
remain unchanged.
Note that group passwords aren't supported in QNX Neutrino. Only the user
root may change the group ID to a group that it doesn't
belong to.
- /etc/group
- Contains information on the group IDs in the system. See
passwd's “Files” section for a brief description
of the format of this file.
- /etc/passwd
- Contains information on the user IDs in the system.
See the passwd utility “Files” section for a brief description
of the format of these files.
passwd,
su
Managing User Accounts
in the Neutrino User's Guide
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