On Mon, 2014-09-29 at 14:03 -0500, Les Mikesell wrote:
On Mon, Sep 29, 2014 at 1:41 PM, Always Learning centos@u62.u22.net wrote:
Thanks. I learned something new today.
Not exactly... Applications that pipe to the sendmail command line program to send messages go back to the dawn of email. MTAs that replace the 'real' sendmail pretty much have to provide that functionality.
Yes I did learn something new.
Just new to you...
No. Not only to me but also new to others who, like me, never knew. Learning is a continuous process :-)
If you really want to appreciate the concepts, you should find a unix manual from the days before X was included. Back then there were 5 sections where 1 covered the command line programs, 2 covered system calls, 3 the standard C library, etc. It was small enough that you could read and mostly memorize it, especially section 1, in a few days. The thing to appreciate is that 30+ years later, even in cloned versions, those things were designed well enough that pretty much everything in there still continues to work.
Design is so important. Get it really right the first time and vast amounts of time and effort are saved. If I ever encounter a Unix book or manual, I'll certainly keep it to read.
Thank you.
Paul. England, EU.