/KEYWORDS
atan2
break
BEGIN 
close continue cos
delete do
else exp exit
END 
for function
getline gsub
if index int
length local log
match
next
print printf
rand return
sin split sprintf sqrt srand sub substr system
tolower toupper
while
/KEYWORDS1
ARGC ARGV
CONVFMT
ENVIRON
FILENAME
FNR
FS
NF NR
OFMT OFS ORS
RLENGTH RS RSTART
SUBSEP
