NEWGRP(1) User Commands NEWGRP(1) newgrp - newgrp [ []] newgrp [-c ] [] newgrp , , login(1) , , . , GID GID , . An optional command can be specified, which is invoked after group change instead of the user's shell. -c, --command= -c. -h, --help . -V, --version . /etc/group, /etc/passwd Michael Haardt. Peter Orbaek . login(1), group(5) newgrp util-linux, Linux . util-linux 2.41 2025-03-29 NEWGRP(1)