-a
和是什么-G
意思?谢谢。
sudo usermod -a -G www-data username
答案1
从man usermod
:
-a, --append
Add the user to the supplementary group(s). Use only with the -G option.
-G, --groups GROUP1[,GROUP2,...[,GROUPN]]]
A list of supplementary groups which the user is also a member of. Each group is separated from the next by a comma, with no
intervening whitespace. The groups are subject to the same restrictions as the group given with the -g option.
If the user is currently a member of a group which is not listed, the user will be removed from the group. This behaviour can be
changed via the -a option, which appends the user to the current supplementary group list.
简而言之,将用户sudo usermod -aG www-data username
添加username
到www-data
组中。