The vipw and vigr commands edits the files /etc/passwd and
/etc/group, respectively. With the -s flag, they will edit the shadow
versions of those files, /etc/shadow and /etc/gshadow, respectively.
The programs will set the appropriate locks to prevent file
corruption. When looking for an editor, the programs will first try
the environment variable $VISUAL, then the environment variable
$EDITOR, and finally the default editor, vi(1).
The options which apply to the vipw and vigr commands are:
Edit group database.
Display help message and exit.
Edit passwd database.
-R, --root CHROOT_DIR
Apply changes in the CHROOT_DIR directory and use the
configuration files from the CHROOT_DIR directory.
Edit shadow or gshadow database.
This page is part of the shadow-utils (utilities for managing
accounts and shadow password files) project. Information about the
project can be found at ⟨http://pkg-shadow.alioth.debian.org/⟩. If
you have a bug report for this manual page, see
⟨http://pkg-shadow.alioth.debian.org/getinvolved.php⟩. This page was
obtained from the project's upstream Git repository
⟨git://anonscm.debian.org/git/pkg-shadow/shadow.git⟩ on 2017-03-13.
If you discover any rendering problems in this HTML version of the
page, or you believe there is a better or more up-to-date source for
the page, or you have corrections or improvements to the information
in this COLOPHON (which is not part of the original manual page),
send a mail to email@example.com
shadow-utils 4.4 02/18/2017 VIPW(8)