System Information
| Command | Description |
|---|---|
whoami | Print current user name |
hostname | Print machine name |
uptime | Show system uptime |
env | List all environment variables |
export VAR=value | Set an environment variable |
unset VAR | Remove an environment variable |
where command | Locate all sources (alias, label, builtin, PATH) |
date [+format] | Print current date/time (-u UTC, -I ISO) |