file

file.abs()
file.open()
file.size()
file.isdir()
file.exists()
file.ls()
file.chmod() (and getter?)
file.stdin
file.stdout
file.stderr

f.read()
f.readline()
f.iterate()
f.lines()
f.write()
f.size()
f.close()

process

process.open()

p.read()
p.readline()
p.iterate()
p.lines()
p.write()
p.close()

split()
join()
chomp() (trim?)
substr()

re.match()
re.gmatch()
re.sub()
re.gsub()

http.get()
http.post()

JSON.parse()
JSON.stringify()

system()
pipein() or receive() or input() (use backticks like Perl?)

now()       ? (returns ms? us?)
format()    ? (calls strftime)

rand()
int()
float()
string()
splice()
sort()
keys()