Unix Tutorials

Here are some of the best tutorials I have written so far. Most are the How To variety, but some are taken from the Unix Reference section.

Software Packages

• dpkg: how to list files in Ubuntu/Debian package
• How to fix corrupted packages database for yum
• Use dpkg to compare two Linux servers

Web Servers: Apache and Nginx

• How To: Show modules loaded by Apache

Files, Disks and Storage

• How To: check RAID progress with /proc/mdstat
• How To: identify RAID arrays in Linux
• How To: change filesystem label with tune2fs
• How To: find directories larger than 1GB in Linux

Networking

• How To: Confirm which ports are open on your Linux system
• Keep iptables rules after reboot
• How To: capture network traffic with tcpdump
• 5 ways to use netstat command

Virtualization

• How To: Update VM title with virsh
• How To: Enable Auto Start for KVM

SSH and X11/port forwarding

• How to fix fonts in X11 forwarding
• Change passphrase for your SSH private key

Unix shells and command line

• Patch Bash against Shellshock
• Change tmux meta key
• How To: get started with tmux

Raspberry Pi tutorials

• Confirm Raspberry Pi model
• Determine OS version on your Raspberry Pi

MacOS tutorials

• Create bootable USB from ISO
• List disks and partitions in MacOS
• How To: rename a disk partition in OSX

See Also

• Basic Unix commands
• Advanced Unix commands