A suite of command tools in the vein of the useradd/mod/del, etc tools found on Linux and and Solaris, pw tools on BSD, mk|ch|rmuser/group tools on AIX, etc.
However, their use is not to manipulate local accounts, but POSIX-type accounts that can be found in LDAP directory services installations, namely those with posixAccount and posixGroup attributes. They are also able to administer SUDOer accounts in LDAP if the functionality is enabled at compile time.