Apache Portable Runtime Examples ================================ We have put together a small collection of example program implementations utilising the Apache Portable Runtime libraries. These examples and their build environment have been released to the public domain, and you may take them as a starting point for new applications or as a reference work. helloworld The ubiquitous first-example. ls A basic implementation of the unix ls command. cat A basic implementation of the unix cat command. echoserver A basic TCP server that writes back whatever you send to it. echoclient A basic TCP client that writes data from the command line to a socket and reads the response back.