Fichier des groupes systèmes.
Exemple :
cron:!:8:root
printq:!:9:lp
audit:!:10:root
ecs:!:28:
nobody:!:4294967294:nobody,lpd
usr:!:100:guest
perf:!:20:
shutdown:!:21:
lp:!:11:root,lp,printq
invscout:!:12:invscout
snapp:!:13:snapp
ipsec:!:200:
sysadm:!:201:
mysql:!:202:mysql
