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20/08/2006, 00h13

Le Thu, 17 Aug 2006 16:54:53 +0200, chlori a écrit:

> Hello
>
> I have a shell scripting (bash) problem:
>
> - File One gets lines added to it every few minutes.
> - A shell script should copy the first line into File Two
> and so on until File Two has 100 lines.
> - Then File Three is created and the same is done there.
>
> Any ideas how I could do that?

How could you do what ?
Wouldn't it be easier to post the exact text of this homework ?
Just because, as it is described here it doesn't make much sense to me.
(emphasis on me, as it 'd be that I just can't read fast english
as much as I can write broken english :-)

What I understand from your premices is that you'll fill a
file File(N+1) with the content of the solely first line from
File(N). Seems an easy way to slowly fill a disk with a
numb line

)

Maybe the training exercise was just about that, see if you
could think that the algorithm was dumb ?

Or is it just you didn't post the *real* text ?

Anyway, the answer to your post could be something based on :

This is the file feeding part :

(while true; do sleep 1 && date +%F%X >> /tmp/_numb ; done) &

This is the triggering bot :

(( 100 < $(wc -l /tmp/_numb | cut -d' ' -f1 ) )) && echo "CHANGEFILE"

20/08/2006, 00h13	#6
Loki Harfagr Messages: n/a Hébergeur:	Re: Read and delete one line from file Le Thu, 17 Aug 2006 16:54:53 +0200, chlori a écrit: > Hello > > I have a shell scripting (bash) problem: > > - File One gets lines added to it every few minutes. > - A shell script should copy the first line into File Two > and so on until File Two has 100 lines. > - Then File Three is created and the same is done there. > > Any ideas how I could do that? How could you do what ? Wouldn't it be easier to post the exact text of this homework ? Just because, as it is described here it doesn't make much sense to me. (emphasis on me, as it 'd be that I just can't read fast english as much as I can write broken english :-) What I understand from your premices is that you'll fill a file File(N+1) with the content of the solely first line from File(N). Seems an easy way to slowly fill a disk with a numb line ) Maybe the training exercise was just about that, see if you could think that the algorithm was dumb ? Or is it just you didn't post the real text ? Anyway, the answer to your post could be something based on : This is the file feeding part : (while true; do sleep 1 && date +%F%X >> /tmp/_numb ; done) & This is the triggering bot : (( 100 < $(wc -l /tmp/_numb \| cut -d' ' -f1 ) )) && echo "CHANGEFILE"