In order to do some testing I needed to switch access points while my
Activity was running. Consequently, I was looking for a way to manually
change wireless access points via the command line.
In case this might help someone else, here's what I came up with for
switching between "test" and "tether" access points.
# as root go to wifi dir
adb shell
cd /data/misc/wifi
# save original file
mv wpa_supplicant.conf wpa_supplicant.conf.orig
# "test" access point
cp wpa_supplicant.conf.orig wpa_supplicant.conf.test
chown system:wifi wpa_supplicant.conf.test
# remove all network info other than "test" access point
vi wpa_supplicant.conf.test
# "tether" access point
cp wpa_supplicant.conf.orig wpa_supplicant.conf.tether
chown system:wifi wpa_supplicant.conf.tether
# remove all network info other than "tether"
vi wpa_supplicant.conf.tether
# create script for test (/sdcard/wifitest)
rm wpa_supplicant.conf
ln -s wpa_supplicant.conf.test wpa_supplicant.conf
svc wifi disable
svc wifi enable
# create script for tether (/sdcard/wifitether)
rm wpa_supplicant.conf
ln -s wpa_supplicant.conf.tether wpa_supplicant.conf
svc wifi disable
svc wifi enable
# run applicable script
bash /sdcard/wifitest
bash /sdcard/wifitether
# cleanup
mv wpa_supplicant.conf.orig wpa_supplicant.conf
rm wpa_supplicant.conf.test
rm wpa_supplicant.conf.tether
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