ping

The ping command can verify whether JAuto is working. This command has no arguments.

When used with an output file, i.e. $ echo "/tmp/test.txt|ping" > /tmp/jauto.in, JAuto will write pong into the file /tmp/test.txt. Getting the pong means JAuto is ready for command processing.

When used without an output file, i.e. $ echo "|ping" > /tmp/jauto.in, it can verify whether the input named pipe of JAuto is working. During JAuto startup, the named pipe appears in a short time before JAuto becomes ready. If $ echo "|ping" > /tmp/jauto.in returns immediately, it means either JAuto has started or is starting. If echo blocks, it means either JAuto did not start or it is malfunctioning.