wifimgr - WiFi manager script

A very simple script to manage WiFi connections

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Dependencies

• awk
• dhcpcd
• iproute2
• iw

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Scan for available networks

# ./wifimgr.sh scan

example output:

 Signal	 SSID                              	Enc	 Freq	 Ch	WPS
------------------------------------------------------------------------------
-65.00	 safenet2.4                        	WPA2	 2457	 10	Yes
-76.00	 safenet5                          	WPA2	 5500	 100
-81.00	 opennet                          	Open	 2462	 11

Connect to an access point

# ./wifimgr.sh connect PROTOCOL SSID [PASSWORD]

connects to a network with the specified SSID and PASSWORD.

PROTOCOL is either:

• plain for open networks (without PASSWORD)
• wep for WEP networks
• wpa for WPA networks

Save the access point currently connected to, with the name PROFILE

# ./wifimgr.sh save PROFILE

saves the current connection obtained with connect and stores it with the name PROFILE (connect must be run first to be able to save a connection)

Start previously saved PROFILE

# ./wifimgr.sh start PROFILE

connects to a previously saved connection with the name PROFILE (save must be run first to be able to start a saved connection)

Stop wifimgr and disconnect from the access point

# ./wifimgr.sh stop

stops a connection (releases DHCP lease and kills wpa_supplicant)

Show connection status

# ./wifimgr.sh status

shows some information about the current connected access point

Show help

# ./wifimgr.sh help

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Notes

• the directory where the profiles are saved can be modified by changing the variable $SAVEDIR in wifimgr.sh (default /etc/wifimgr/)
• wifimgr stores the WiFi SSIDs and passwords as plaintext files in the hard drive
• wifimgr was written to handle systems with a single WiFi interface (by default it uses the first one reported by iw)