PERL Function Reference

E
each	retrieve the next key/value pair from a hash
endgrent	be done using group file
endhostent	be done using hosts file
endnetent	be done using networks file
endprotoent	be done using protocols file
endpwent	be done using passwd file
endservent	be done using services file
eof	test a filehandle for its end
eval	catch exceptions or compile code
exec	abandon this program to run another
exists	test whether a hash key is present
exit	terminate this program
exp	raise e to a power
F
fcntl	file control system all
fileno	return file descriptor from filehandle
flock	lock an entire file with an advisory lock
fork	create a new process just like this one
format	declare a picture format with use by the write() function
formline	internal function used for formats
G
getc	get the next character from the filehandle
getgrent	get next group record
getgrgid	get group record given group user ID
getgrnam	get group record given group name
gethostbyaddr	get host record given its address
gethostbyname	get host record given name
gethostent	get next hosts record
getlogin	return who logged in at this tty
getnetbyaddr	get network record given its address
getnetbyname	get networks record given name
getnetent	get next networks record
getpeername	find the other hend of a socket connection
getpgrp	get process group
getppid	get parent process ID
getpriority	get current nice value
getprotobyname	get protocol record given name
getprotobynumber	get protocol record numeric protocol
getprotoent	get next protocols record
getpwent	get next passwd record
getpwnam	get passwd record given user login name
getpwuid	get passwd record given user ID
getservbyname	get services record given its name
getservbyport	get services record given numeric port
getservent	get next services record
getsockname	retrieve the sockaddr for a given socket
getsockopt	get socket options on a given socket
glob	expand filenames using wildcards
gmtime	convert UNIX time into record or string using Greenwich time
goto	create spaghetti code
grep	locate elements in a list test true against a given criterion