server
#!/bin/zsh #zsh TCP server script zmodload zsh/net/tcp #listening port ztcp -l #This is a file describ mark $REPLY fd=$REPLY echo "Waiting for a client..." #accept a new connect. ztcp -a $fd clientfd=$REPLY echo "client connected" echo "welcome to my server" >& $clientfd ] do read line <& $clientfd if [[ $line = "exit" ]] then break else echo Received: $line echo $line >& $clientfd fi done echo Client disconnected session #Close fd and clientfd ztcp -c $fd ztcp -c $clientfd
client
#!/bin/zsh #Zsh tcp client program zmodload zsh/net/tcp ztcp localhost hostfd=$REPLY read line <& $hostfd echo $line ] do echo -n "Enter text:" read phrase echo Sending $phrase to remote host... echo "$phrase" >& $hostfd #There is a small problem:if server is shut,client will continu run.Fortunately,after three request,the connect will close atuomatically. if [[ $phrase = "exit" ]] then break fi read line <& $hostfd echo " received: $line" done ztcp -c $hostfd