C Useful

System

An Example To Detect If Your Are LITTLE Or BIG ENDIAN
Catch CTRL+C Signal (Keyboard Interruption Signal)
An Example To Detect If Current User Is 'root' (Linux) Or 'Administrator' (Windows)
An Example To Add Log On 'Syslog' (Linux) Or 'Events' (Windows)
A Simple Example To Install / Manage / Uninstall A Windows Service
A Simple Example To Create/Query/Delete Regedit Key And Value

An Example To Detect If Your Are LITTLE Or BIG ENDIAN

Catch CTRL+C Signal (Keyboard Interruption Signal)

( man signal | man 7 signal | man sigaction )

An Example To Detect If Current User Is 'root' (Linux) Or 'Administrator' (Windows)

( man getuid | MSDN IsUserAnAdmin )

An Example To Add Log On 'Syslog' (Linux) Or 'Events' (Windows)

( man syslog | MSDN RegisterEventSource | MSDN ReportEvent )

A Simple Example To Install / Manage / Uninstall A Windows Service

(ONLY Works On Windows)
( MSDN OpenSCManager | MSDN OpenService | MSDN CreateService | MSDN DeleteService... )

A Simple Example To Create/Query/Delete Regedit Key And Value

(ONLY Works On Windows)
( MSDN RegOpenKeyEx | MSDN RegSetValueEx | MSDN RegQueryValueEx... )