Linux general

• edit PDF metadata
• change root's theme
• swap file on BTRFS
• chrome options
• fix bash history
• How to send email from command line in fixed font
• update etherpad
• rootvg won't resize
• x11 forwarding for sudo users
• chromecast op linux
• AIX cheatsheet
• linux algemeen
• SOX audio examples
• sort installed rpms by size
• view progress of dd
• dealing with spaces in filenames
• POSTFIX
• How to backup your disk with dd
• How to make a webcam page with Apache on Linux
• How to make Audacity work with ALSA
• Reinstalling GRUB after Windows install
• Make .par files work in KDE
• Keyboard setting for diacritical characters
• How to make a .iso file from your CD or DVD
• How to find duplicate files BY CONTENT!!
• How to clone or copy your harddisk over the network
• How to connect to server on strange port, or when you're behind a firewall
• How to find information about a host or webserver
• How to make a virtualBox window seamless
• Using bridged networking in VirtualBox
• Mounting remote directories using FUSE and sshfs on openSUSE
• Using x2x to connect two computers and their screens with one mouse and keyboard
• Convert an AVCHD / MTS file to MP4 using ffmpeg
• How to restore MBR on harddisk
• How to automatically log in to remote ssh servers using public/private keypair
• How to make an encrypted directory
• How to send mail via telnet to a server using SMTP commands
• How to test network speed
• How to convert an existing ext3 filesystem to ext4
• How to make a dump of a website
• Linux performance monitoring
• How to make a shell fork bomb
• How to resque a hanging linux
• Script to check and restart a process
• Enlarge disks by removing reserve space on ext2/3/4
• SSH filesystem
• Using GRUB to boot multiple operating systems, the correct way
• iptables for dummies
• Convert .pcd (PhotoCD) files