adb shell: telnet command doesn't work

i want to learn how to mock up location in android device and develop a location based app. My problem is when I say adb shell in th开发者_运维技巧e command prompt it lets me go into the emulator with # symbol.

problem starts here

When I enter telnet localhost 5554 to telnet the device it says telnet: not found

what could be the problem?? am I doing something wrong?

you don't have to telnet with adb. Just use a normal command line window to type in telnet localhost 5554 - but don't enter adb before!

You don't have telnet installed.

In ubuntu install it by:

$ sudo apt-get install telnet