NEWGRP(1)                        User Commands                       NEWGRP(1)

NAME
       newgrp - log in to a new group

SYNOPSIS
       newgrp [group [command]]

       newgrp [-c command] [group]

DESCRIPTION
       newgrp changes the group identification of its caller, analogously to
       login(1). The same person remains logged in, and the current directory
       is unchanged, but calculations of access permissions to files are
       performed with respect to the new group ID.

       If no group is specified, the GID is changed to the login GID.

       An optional command can be specified, which is invoked after group
       change instead of the user's shell.

OPTIONS
       -c, --command=command
           Pass command to the user's shell with the -c option.

       -h, --help
           Display help text and exit.

       -V, --version
           Display version and exit.

FILES
       /etc/group, /etc/passwd

AUTHORS
       Originally by Michael Haardt. Currently maintained by Peter Orbaek
       <poe@daimi.aau.dk>.

SEE ALSO
       login(1), group(5)

REPORTING BUGS
       For bug reports, use the issue tracker
       <https://github.com/util-linux/util-linux/issues>.

AVAILABILITY
       The newgrp command is part of the util-linux package which can be
       downloaded from Linux Kernel Archive
       <https://www.kernel.org/pub/linux/utils/util-linux/>.

util-linux 2.42.2                 2026-06-16                         NEWGRP(1)