root@debian:~# hasher-useradd test Usage: useradd [options] LOGIN Options: -b, --base-dir BASE_DIR base directory for the new user account home directory -c, --comment COMMENT set the GECOS field for the new user account -d, --home-dir HOME_DIR home directory for the new user account -D, --defaults print or save modified default useradd configuration -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 for the new user account -G, --groups GROUPS list of supplementary groups for the new user account -h, --help display this help message and exit -k, --skel SKEL_DIR specify an alternative skel directory -K, --key KEY=VALUE overrides /etc/login.defs defaults -l, do not add the user to the lastlog and faillog databases -m, --create-home create home directory for the new user account -N, --no-user-group do not create a group with the same name as the user -o, --non-unique allow create user with duplicate (non-unique) UID -p, --password PASSWORD use encrypted password for the new user account -r, --system create a system account -s, --shell SHELL the login shell for the new user account -u, --uid UID force use the UID for the new user account -U, --user-group create a group with the same name as the user hasher-useradd: error creating satellite user test_a