users.(1) - phpMan

applygnupgdefaults (8) - Run gpgconf - apply-defaults for all users.
arpd (8)             - userspace arp daemon.
console.perms (5)    - permissions control file for users at the system console
doveadm-kick (1)     - Disconnect users by user name and/or IP address
doveadm-replicator (1) - Manage users' mail replication
endusershell (3)     - get permitted user shells
file_contexts (5)    - userspace SELinux labeling interface and configuration...
file_contexts.homedirs (5) - userspace SELinux labeling interface and configu...
file_contexts.local (5) - userspace SELinux labeling interface and configurat...
file_contexts.subs (5) - userspace SELinux labeling interface and configurati...
file_contexts.subs_dist (5) - userspace SELinux labeling interface and config...
ftpusers (5)         - list of users that may not log in via the FTP daemon
getusershell (3)     - get permitted user shells
hosts.equiv (5)      - list of hosts and users that are granted "trusted" r c...
lastlog (8)          - reports the most recent login of all users or of a giv...
local.users (5)      - The SELinux local users configuration file
lslogins (1)         - display information about known users in the system
media (5)            - userspace SELinux labeling interface and configuration...
Net::Netrc (3pm)     - OO interface to users netrc file
newusers (8)         - update and create new users in batch
nologin (5)          - prevent unprivileged users from logging into the system
pam_console_apply (8) - set or revoke permissions for users at the system con...
pam_localuser (8)    - require users to be listed in /etc/passwd
pam_mkhomedir (8)    - PAM module to create users home directory
pam_nologin (8)      - Prevent non-root users from login
rtas (2)             - Allows userspace to call RTAS (Run Time Abstraction Se...
sasldblistusers2 (8) - list users in sasldb
selabel_db (5)       - userspace SELinux labeling interface and configuration...
selabel_file (5)     - userspace SELinux labeling interface and configuration...
selabel_media (5)    - userspace SELinux labeling interface and configuration...
selabel_x (5)        - userspace SELinux labeling interface and configuration...
sepgsql_contexts (5) - userspace SELinux labeling interface and configuration...
setusershell (3)     - get permitted user shells
sysusers.d (5)       - Declarative allocation of system users and groups
tcsd.conf (5)        - configuration file for the trousers TCS daemon.
users (1)            - print the user names of users currently logged in to t...
x_contexts (5)       - userspace SELinux labeling interface and configuration...