add-shell - add shells to the list of valid login shells
2. SYNOPSIS ▲
add-shell shellname [ shellname ...]
3. DESCRIPTION ▲
add-shell copy /etc/shells to /etc/shells.tmp, add the given shells to this file if they are not already present, and copy this temporary file back to /etc/shells. The shells must be provided by their full pathnames.
4. SEE ALSO ▲
R shells (5)