getpgrp PID Returns the current process group for the specified PID. Use a PID of 0 to get the current process group for the current process. Will raise an exception if used on a machine that doesn't implement getpgrp(2). If PID is omitted, returns the process group of the current process. Note that the POSIX version of getpgrp does not accept a PID argument, so only PID==0 is truly portable. Portability issues: getpgrp in perlport.

getpeername SOCKET Returns the packed sockaddr address of the other end of the SOCKET connection. use Socket; $hersockaddr = getpeername(SOCK); ($port, $iaddr) = sockaddr_in($hersockaddr); $herhostname = gethostbyaddr($iaddr, AF_INET); $herstraddr = inet_ntoa($iaddr);

NAME SYNOPSIS DESCRIPTION Command Line Options, an Introduction Getting Started with Getopt::LongSimple options A little bit less simple options Mixing command line option with other arguments Options with values Options with multiple values Options with hash values User-defined subroutines to handle options Options with multiple names Case and abbreviations Summary of Option Specifications Advanced PossibilitiesObject oriented interface Thread Safety Documentation and help texts Parsing opt

NAME SYNOPSIS DESCRIPTION --help and --version NAME getopt, getopts - Process single-character switches with switch clustering SYNOPSIS use Getopt::Std; getopts('oif:'); # -o & -i are boolean flags, -f takes an argument # Sets $opt_* as a side effect. getopts('oif:', \%opts); # options as above. Values in %opts getopt('oDI'); # -o, -D & -I take arg. # Sets $opt_* as a side effect. getopt('oDI', \%opts); # -o, -D & -I take arg. Values in

getnetent

getnetbyname NAME

getnetbyaddr ADDR,ADDRTYPE

getlogin This implements the C library function of the same name, which on most systems returns the current login from /etc/utmp, if any. If it returns the empty string, use getpwuid. $login = getlogin || getpwuid($<) || "Kilroy"; Do not consider getlogin for authentication: it is not as secure as getpwuid. Portability issues: getlogin in perlport.

gethostent

gethostbyname NAME