The following table classifies awk functions and commands.
atan2
gensub
break
close
strftime
delete
cos
gsub
continue
fflush
systime
function
exp
index
do
while
getline
system
int
length
exit
next
log
match
for
nextfile
rand
split
if
print
sin
sprintf
return
printf
sqrt
sub
srand
substr
tolower
toupper
[3] Available in nawk . [4] Available in gawk . [5] Available in Bell Labs awk and gawk .
[3] Available in nawk .
[4] Available in gawk .
[5] Available in Bell Labs awk and gawk .