grpconv
convert to shadow group format
TLDR
Convert to shadow groups
$ sudo grpconv
Check current status first$ ls -la /etc/gshadow
SYNOPSIS
grpconv [options]
DESCRIPTION
grpconv converts from traditional group format to shadow group format. It creates /etc/gshadow from /etc/group information.The tool moves encrypted group passwords from /etc/group to /etc/gshadow, improving security by limiting access to password data.
PARAMETERS
-R DIR
Chroot directory.--help
Display help information.
INSTALL
sudo apt install passwd
sudo apk add shadow-conv
CAVEATS
Requires root access. Run grpck first to verify integrity. Irreversible without backup.
HISTORY
grpconv was developed as part of the shadow password suite to improve group password security.