gethostbyaddr ADDR,ADDRTYPE

getgrnam NAME

getgrgid GID

getgrent

getc FILEHANDLE getc Returns the next character from the input file attached to FILEHANDLE, or the undefined value at end of file or if there was an error (in the latter case $! is set). If FILEHANDLE is omitted, reads from STDIN. This is not particularly efficient. However, it cannot be used by itself to fetch single characters without waiting for the user to hit enter. For that, try something more like: if ($BSD_STYLE) { system "stty cbreak </dev/tty >/dev/tty 2>&1"; } else {

ge These operators are documented in perlop.

formline PICTURE,LIST This is an internal function used by formats, though you may call it, too. It formats (see perlform) a list of values according to the contents of PICTURE, placing the output into the format output accumulator, $^A (or $ACCUMULATOR in English). Eventually, when a write is done, the contents of $^A are written to some filehandle. You could also read $^A and then set $^A back to "" . Note that a format typically does one formline per line of form, but the formline function i

format Declare a picture format for use by the write function. For example: format Something = Test: @<<<<<<<< @||||| @>>>>> $str, $%, '$' . int($num) . $str = "widget"; $num = $cost/$quantity; $~ = 'Something'; write; See perlform for many details and examples.

fork Does a fork(2) system call to create a new process running the same program at the same point. It returns the child pid to the parent process, 0 to the child process, or undef if the fork is unsuccessful. File descriptors (and sometimes locks on those descriptors) are shared, while everything else is copied. On most systems supporting fork(), great care has gone into making it extremely efficient (for example, using copy-on-write technology on data pages), making it the dominant paradigm f

foreach These flow-control keywords are documented in Compound Statements in perlsyn.