December 1994
Intermediate to advanced
606 pages
16h 7m
English
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Exercises
Modify the
timed-readscript on page 112 so that it can take an optional default answer which will be returned if the timeout is exceeded.Modify the
rshscript on page 118 so that it returns the remote status of programs no matter how much output they produce.Modify the
rloginscript on page 120 so that it copies the X authority file. Modify the script so that it also supportstelnet.The
dumpprogram starts by printing an estimate such as:DUMP: estimated 1026958 blocks (501.44MB) on 0.28 tape(s).Write a script to print out how many tapes the next backup will take.dump’s knowledge of backup peripherals is often out of date. Assuming you are using a device much bigger thandumprealizes, write a script so thatdumpnever stops and asks for a new tape.Enhance the script you wrote for the previous question so that it does a better job of asking for tapes. For example, if your tapes are ten times as big as
dumpthinks, then the script should ask only once for every ten times thatdumpasks.
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O’Reilly covers everything we've got, with content to help us build a world-class technology community, upgrade the capabilities and competencies of our teams, and improve overall team performance as well as their engagement.Julian F.
I wanted to learn C and C++, but it didn't click for me until I picked up an O'Reilly book. When I went on the O’Reilly platform, I was astonished to find all the books there, plus live events and sandboxes so you could play around with the technology.Addison B.
I’ve been on the O’Reilly platform for more than eight years. I use a couple of learning platforms, but I'm on O'Reilly more than anybody else. When you're there, you start learning. I'm never disappointed.Amir M.
I'm always learning. So when I got on to O'Reilly, I was like a kid in a candy store. There are playlists. There are answers. There's on-demand training. It's worth its weight in gold, in terms of what it allows me to do.