Regarding 'for' loop in KornShell

Question

Is there a way to implement the following using \'for\' in KornShell (ksh)? Here is the C equivalent:

for(i=1;i<20;i++)
{
    printf(\"%d\",i);
}
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Answer 1

Unfortunately, it looks as if ksh does not have support for range-based brace expansion or support the (( )) construct so to do this compactly, you'll need to call the external binary seq like so:

for i in $(seq 1 20); do
  echo $i
done