/etc/login.defs请问其中USERDEL_CMD /usr/sbin/userdel_local的作用..

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[root@shlinux /]# cat /etc/login.defs | grep -v ^#
MAIL_DIR        /var/spool/mail

PASS_MAX_DAYS 99999
PASS_MIN_DAYS   0
PASS_MIN_LEN    5
PASS_WARN_AGE   7

UID_MIN                   500
UID_MAX                 60000

GID_MIN                   500
GID_MAX                 60000

USERDEL_CMD     /usr/sbin/userdel_local

CREATE_HOME     no


如题........

7dehao

# If defined, this command is run when removing a user.
# It should remove any at/cron/print jobs etc. owned by
# the user to be removed (passed as the first argument).