Installing the SSH binary on Android (for use with adb shell):

Install SSHDroid

Launch SSHDroid and accept the superuser request

Then make sure you have your Android device connected with access to adb!

$ adb shell
$ su
$ mount -o rw,remount /system
$ cp /data/data/berserker.android.apps.sshdroid/dropbear/ssh /system/bin/ssh