Hi,
Here are some functions which i know
oad( file[, private=false])
local_variables
loop {...}
open( path[, mode="r"])
open( path[, mode="r"]) {| f|...}
p( obj) print([ arg...])
printf( fmt[, arg...])
proc {| x|...}
putc( c)
puts([ str])
raise(...)
fail(...)
srand([ seed])
String( obj)
syscall( sys[, arg...])
system( cmd[, arg...])
sub( x, y)
sub( x) {...}
trap( sig, cmd)
trap( sig) {...}
untrace_var( var[, cmd]