Perl built-in functions

Alphabetical

abs(arg) - returns absolute value of arg
accept()
alarm($seconds) - sends an alarm signal after $seconds seconds
atan2($y,$x) - returns the arctangend of $y/$x
bind()
binmode(filehandle) - sets filehandle to be treated as binary
bless()
caller()
chdir()
chmod()
chomp()
chop()
chown()
chr()
chroot()
close()
closedir()
connect()
cos()
crypt()
dbmclose()
dbmopen()
defined()
delete()
die()
do subroutine
dump()
each()
endgrent
endhostent
endnetent
endprotoent
endpwent
endservent
eof()
eval()
exec()
exists($assoc($key)) - returns TRUE if $key exists within the hash $assoc. Doesn't work with dbm hashes.
exit()
exp()
fcntl()
fileno()
flock()
fork
format
formline()
getc()
getgrent
getgrgid()
getgrnam()
gethostbyaddr()
gethostbyname()
gethostent
getlogin
getnetbyaddr()
getnetbyname()
getnetent
getpeername()
getpgrp()
getppid
getpriority()
getprotobyname()
getprotobynumber()
getprotoent
getpwent
getpwnam()
getpwuid()
getserverbyname()
getserverbyport()
getservent
getsockname()
getsockopt()
glob()
gmtime()
goto()
grep()
hex()
index()
int()
ioctl()
join()
keys()
kill()
last()
lc(string) - returns string in lowercase
lcfirst(string) - returns string with first character lowercased