.\" Original author unknown. This man page is in the public domain. .\" Modified Sat Oct 9 17:46:48 1993 by faith@cs.unc.edu .TH NEWGRP 1 "October 1993" "util-linux" "User Commands" .SH NAME newgrp \- log in to a new group .SH SYNOPSIS .B newgrp .RI [ group ] .SH DESCRIPTION .B newgrp changes the group identification of its caller, analogously to .BR 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. .LP If no group is specified, the GID is changed to the login GID. .LP .SH FILES .I /etc/group .br .I /etc/passwd .SH "SEE ALSO" .BR login (1), .BR group (5) .SH AUTHOR Originally by Michael Haardt. Currently maintained by Peter Orbaek (poe@daimi.aau.dk). .SH AVAILABILITY The newgrp command is part of the util-linux package and is available from https://www.kernel.org/pub/linux/utils/util-linux/.