some go libraries

Package	Purpose	Examples
fmt	formatted I/O	Printf, Sprintf
os	OS interface	Open, Read, Write
strconv	numbers <-> strings	Atoi, Atof, Itoa
io	generic I/O	Copy, Pipe
flag	flags: --help etc.	Bool, String
log	event logging	Log, Logf, Stderr
regexp	regular expressions	Compile, Match
template	HTML, etc.	Parse, Execute
bytes	byte arrays	Compare, Buffer

further libs: bignum, crypto, encoding, exec, hash, http, image, json, net, math, rand, regexp, sort, syscall, xml, time, unicode,