sudo usermod –a –G apache ec2-user 이 명령어가 안먹어요

sudo usermod –a –G apache ec2-user

해당 명령어를 입력하면 아래같이 나옵니다.

이후 진행을 못하고 있어요.

[ec2-user@ip-172-31-22-71 ~]$ sudo usermod –a –G apache ec2-user

Usage: usermod [options] LOGIN

Options:

  -c, --comment COMMENT         new value of the GECOS field

  -d, --home HOME_DIR           new home directory for the user account

  -e, --expiredate EXPIRE_DATE  set account expiration date to EXPIRE_DATE

  -f, --inactive INACTIVE       set password inactive after expiration

                                to INACTIVE

  -g, --gid GROUP               force use GROUP as new primary group

  -G, --groups GROUPS           new list of supplementary GROUPS

  -a, --append                  append the user to the supplemental GROUPS

                                mentioned by the -G option without removing

                                him/her from other groups

  -h, --help                    display this help message and exit

  -l, --login NEW_LOGIN         new value of the login name

  -L, --lock                    lock the user account

  -m, --move-home               move contents of the home directory to the

                                new location (use only with -d)

  -o, --non-unique              allow using duplicate (non-unique) UID

  -p, --password PASSWORD       use encrypted password for the new password

  -R, --root CHROOT_DIR         directory to chroot into

  -s, --shell SHELL             new login shell for the user account

  -u, --uid UID                 new UID for the user account

  -U, --unlock                  unlock the user account

  -Z, --selinux-user SEUSER     new SELinux user mapping for the user account