👉 rcvr in programming refers to a receiver that receives data from another process or source. This can be done through pipes, sockets, or other means of communication between two processes. For example, consider a simple TCP connection between two programs A and B. In this case, A sends data to B via the pipe file descriptor 1234567890. When B receives this data, it can then send that data back to A using the same pipe file descriptor. This
