Chris F.A. Johnson wrote:
> On 2006-11-01, Casper H.S Dik wrote:
>>Janis Papanagnou <Janis_Papanagnou@hotmail.com> writes:
>>>Stephane CHAZELAS wrote:
>>>>2006-11-1, 00:22(-05), Bill Marcum:
>>>>
>>>>>Some systems have the "seq" command:
>>>>>for x in `seq 1 10`
>>>>
>>>>GNU systems, seq is a GNU only command. And that assumes the
>>>>newline character is in IFS and that no digits are in IFS.
>>
>>>If one fiddles with IFS he should take care that any changed
>>>IFS has just some well defined preferable local scope, take
>>>some precautions to save/restore it, or define it for a single
>>>command only.
>>
>>And who needs seq (for most purposes) when you have:
>>
>> `yes "" | cat -n | head -10`
>>
>>for 10 fill in any number.
>
> But who says you have it?
>
> $ yes "" | cat -n | head -10
> cat: cannot open -n: No such file or directory
>
> It works with most versions of cat, but it is not part of the
> standard.

$ yes "" | head -10 | awk '{print NR}'


Janis