I rooted my device, then I go to adb shell and type su to enter wpa_cli.
I was surprised that wpa_cli: not found appeared, although I get information when I type wpa_supplicant.
I know that wpa_cli is from same library wpa_supplicant from this link
http://android.stackexchange.com/questions/40945/how-can-i-install-wpa-cli-on-my-rooted-device
– H.H Mar 06 '13 at 17:19