A question about BASH
 

Hi everyone:

I want to see the header of mails in my mailbox on Redhat Linux. So I wrote the following awkward shell :

mail < mail.input | awk '/U / {print}'

The content of file "mail.input" is just :

quit

How could I do this without the file "mail.input"?

Thanks for your attention and look forward to your replay.

Hi, operand.

You could try:

echo "quit" | mail | awk '/U / {print}'

Rob :)

Hi rob:

That works. Thanks a lot. ^_^ .

operand