The following is a complete list of Perl functions and a short description of what they do. Note: The text in parentheses is a reference to the like-named UNIX system call found in Section 2 of the UNIX manual pages. The like-named UNIX library functions are found in Section 3 of the UNIX manual pages.
Table A.1. Perl Functions
Returns the absolute value of its argument ($_ is the default). Ignores signs.
Accepts a socket connection from clients waiting for a connection.
GENERICSOCKET, a filehandle, has been previously opened by the socket function, is bound to an address, and is listening for a connection. ...