grpunconv
revert from shadow group format
TLDR
Convert from shadow groups
$ sudo grpunconv
Verify status after$ ls -la /etc/gshadow
SYNOPSIS
grpunconv [options]
DESCRIPTION
grpunconv converts from shadow group format back to traditional format. It moves password information from /etc/gshadow back to /etc/group and removes /etc/gshadow.The tool reverses what grpconv does, returning to traditional group password storage. This is rarely needed on modern systems.
PARAMETERS
-R DIR
Chroot directory.--help
Display help information.
INSTALL
sudo apt install passwd
sudo apk add shadow-conv
CAVEATS
Requires root access. Reduces security. Rarely needed on modern systems.
HISTORY
grpunconv was developed as part of the shadow password suite to allow reverting shadow group changes.