abs(n) - phpMan

URI (3pm)            - Uniform Resource Identifiers (absolute and relative)
abs (3)              - compute the absolute value of an integer
abs (3p)             - return an integer absolute value
bio (7ssl)           - Basic I/O abstraction
cabs (3)             - absolute value of a complex number
cabs (3p)            - return a complex absolute value
cabsf (3)            - absolute value of a complex number
cabsl (3)            - absolute value of a complex number
canonicalize_file_name (3) - return the canonicalized absolute pathname
crontabs (4)         - configuration and scripts for running periodical jobs
doveadm-fs (1)       - Interact with the abstract mail storage filesystem
expand (1)           - convert tabs to spaces
expand (1p)          - convert tabs to spaces
fabs (3)             - absolute value of floating-point number
fabs (3p)            - absolute value function
fabsf (3)            - absolute value of floating-point number
fabsl (3)            - absolute value of floating-point number
imaxabs (3)          - compute the absolute value of an integer
imaxabs (3p)         - return absolute value
labs (3)             - compute the absolute value of an integer
labs (3p)            - return a long integer absolute value
llabs (3)            - compute the absolute value of an integer
llabs (3p)           - return a long integer absolute value
Mail::DKIM::Policy (3pm) - abstract base class for originator "signing" policies
Mail::SPF::Record (3pm) - Abstract base class for SPF records
Mail::SPF::SenderIPAddrMech (3pm) - Abstract base class for SPF record mechan...
perlapio (1)         - perl's IO abstraction interface.
realpath (3)         - return the canonicalized absolute pathname
rtas (2)             - Allows userspace to call RTAS (Run Time Abstraction Se...
tabs (1)             - set tabs on a terminal
tabs (1p)            - set terminal tabs
TAP::Formatter::Session (3pm) - Abstract base class for harness output delegate
tcamgr (1)           - the command line utility of the abstract database API
tcamttest (1)        - test cases of the abstract database API
tcatest (1)          - test cases of the abstract database API
Text::Tabs (3pm)     - expand and unexpand tabs like unix expand(1) and unexp...
unexpand (1)         - convert spaces to tabs
unexpand (1p)        - convert spaces to tabs
XML::SAX::PurePerl::Reader (3pm) - Abstract Reader factory class