i have the same code but it doesnt show output of command uname -a. it pending forever. please help me explain why it dont show output of command uname -a output like this: PC_PV: channel 1: new client-session PC_PV: Requesting channel_open for channel 1. PC_PV: Entering interactive session. PC_PV: Requesting service exec on channel 1. PC_PV: channel 1: open confirm rwindow 0 rmax 32768