Awk
Basic syntax
Directories
Create symbolic link to linkname
File Management
Show free and used space on mounted filesystems
Hardware
Display messages in kernel ring buffer
Network
Display all network interfaces and IP addresses
Linux Permissions
Introduction
Processes
Display your currently running processes
Rsync
Synchronize /home to /backup
File Search
Search for pattern in file
Statistics
Interactive process viewer (top alternative)
Systeminfo
Display Linux system information
Tar Command
Introduction