cupsdisable (8)      - stop/start printers and classes
fedisableexcept (3)  - floating-point rounding and exception handling
hal-disable-polling (1) - disable polling on drives with removable media
Opcode (3pm)         - Disable named opcodes when compiling perl code
pam_tty_audit (8)    - Enable or disable TTY auditing for specified users
reboot (2)           - reboot or enable/disable Ctrl-Alt-Del
swapoff (8)          - enable/disable devices and files for paging and swapping
swapon (8)           - enable/disable devices and files for paging and swapping
syndaemon (1)        - a program that monitors keyboard activity and disables...
utf8 (3pm)           - Perl pragma to enable/disable UTF-8 (or UTF-EBCDIC) in...