26 Sep 1997 vipw 8 26 Sep 1997 vipw vigr edit the password, group, shadow-password or shadow-group file. vipw-s vigr-s vipw and vigr will edit 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. group5 , passwd5 , shadow5 .