System and user information
User
Display current username (or user when using sudo)
whoami
sudo whoamiShow currently logged in user
whoPermission details for current user
idList users for system
usersDisplay information about system user
finger <username>Show login history for system (or system reboot history)
last
last rebootOperating System
Display the Unix system type being used
Display the processor architecture (-p) or machine hardware (-m). (Examples: Processor arm, i386 / Hardware arm64, x86_64)
Display system OS information (Linux)
Show distribution specific version information (Linux)
Display basic system OS information or more detailed system config (macOS)
Command Info
Search system commands and display short description
Show location of command for current user path config
Show all locations for command
Uptime
Display system uptime, memory, who is logged in and what they are doing
System uptime statistics
Hostname
Display the machine short hostname
Display the machine fully qualified hostname
Processes
Display real time information about process
Display detailed real time information about the system
Show list of running processes
Memory
Show memory usage (in megabytes)
Network
Network settings including computer IP
Local machine IP
Show smb info for network volumes
Terminal
Output key / value pairs of current environment variables
Output current terminal settings
Log Files
Log files location
System Mail
System mail messages for users
Show mail messages
Empty mail messages (via truncate operator >)
Empty mail messages (alternative command)
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