The following ksh commands are built into dbx:
| : | . | [ | bg | bind |
| break | builtin | cd | continue | dalias |
| eval | exec | exit | export | false |
| fc | fg | getopts | hash | jobs |
| kalias | kill | kprint | let | read |
| readonly | return | set | sh | shift |
| test | times | trap | true | typeset |
| ulimit | umask | unalias | unset | wait |
| whence |