ping redis server

To ping a Redis server in the C language, you would first include the "hiredis.h" header file. Then, establish a connection to the Redis server using the "redisConnect" function, passing the server address and port as parameters. After that, you would check if the connection was successful. If successful, you would use the "redisCommand" function to send the "PING" command to the server. Finally, you would receive the server's response using the "reply" object and handle the response accordingly.