This thread is interesting, but if people are still trying to help with my original question, let me just repeat that using tee does solve the problem. And since there's been alot of theorizing about C programs and making changes to buffer routines in existing programs, let me just say that (for me), none of that was really a possibility. All I really wanted to do was to fix the following line in a script I use to back-up my PDA using pilot-xfer and I had no desire to mess with sources on a great, working program ;-). Here's what I had.
pilot-xfer -e $HOME/Palm/backup/exclude-files -s $HOME/Palm/backup/$TODAY | grep "Time elapsed: 0:00:0" > $HOME/Palm/backup/tmp-time I needed the output file tmp-time to check if the program didn't exit immediately - that sometimes happens when there are communications problems and I want the script to know how to react to that situation. But using GREP meant there was no screen output, since everything went to GREP. And I also wanted to be able to see the program scrolling the list of files being backed up. The following version outputs to the screen AND to tmp-screen-output, which I then GREP to get tmp-time. pilot-xfer -e $HOME/Palm/backup/exclude-files -s $HOME/Palm/backup/$TODAY I tee tmp-screen-output cat tmp-screen-output | grep "Time elapsed: 0:00:0" > $HOME/Palm/backup/tmp-time And, as I already wrote, although I can't explain it, the buffer problem disappeared. I know it makes no sense, but the first couple of times I ran the **tee** version of the script, the screen output was buffered, and since I was getting about 100 line of output at a time, the explanation given by someone that the buffer is 4096, makes sense. But, when I run the script now, it does exactly what I wanted it to. So problem solve. But, of course, if you want to continue discussing the theoretical asspects, go on ... -- Shlomo Solomon http://come.to/shlomo.solomon Sent by KMail (KDE 3.0.5a) on LINUX Mandrake 9.0 ================================================================To unsubscribe, send mail to [EMAIL PROTECTED] with the word "unsubscribe" in the message body, e.g., run the command echo unsubscribe | mail [EMAIL PROTECTED]
