.TH NEWGRP 1 .SH NAMEnewgrp \- log in to a new group.SH SYNOPSIS.B newgrpgroup.SH DESCRIPTION.I Newgrpchanges the group identification of its caller,analogously to.IR  login (1).The same person remains logged in,and the current directory is unchanged,but calculations of access permissions to files areperformed with respect to thenew group ID..PPA password is demanded if the group hasa password and the user himself does not..PPWhen most users log in, theyare members of the group named `other.'.I Newgrpis known to the shell, which executes it directly without a fork..SH FILES/etc/group, /etc/passwd.SH "SEE ALSO"login(1), group(5)