December 2018
Beginner
826 pages
22h 54m
English
Content preview from Linux Administration Cookbook
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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.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.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.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.
lsof
lsof is a great tool with a very confusing help section. In short, it's used to list open files on a system, but run raw (without arguments), that's a lot of information.
The most common way I've seen it used is like so:
$ lsof | head -n1; sudo lsof | grep "$(pidof rsyslogd)" | grep -v "socket\|lib64\|dev\|rs:main\|in:imjour" | grep REGCOMMAND PID TID USER FD TYPE DEVICE SIZE/OFF NODE NAMErsyslogd 861 root txt REG 253,0 663872 34070960 /usr/sbin/rsyslogdrsyslogd 861 root mem REG 0,19 4194304 7276 /run/log/journal/deb74f074ec9471f91c6c5dd7370484f/system.journalrsyslogd 861 root 4w REG 253,0 182727 100834552 /var/log/messagesrsyslogd 861 root 5r REG 0,19 4194304 7276 /run/log/journal/deb74f074ec9471f91c6c5dd7370484f/system.journalrsyslogd ...
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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.