mjhjmtu

This is primarily a formatting problem which I haven't been able to solve well.

I want to create a bash function or script which converts output from wpa-passphrase to a format that can be used by /etc/network/interfaces.

Example WPA-Supplicant

wpa_passphrase ssid password

Produces the following output

network=
 ssid="MYSSID"
 #psk="passphrase"
 psk=ccb290fd4fe6b22935cbae31449e050edd02ad44627b16ce0151668f5f53c01b

I need to convert that output to a format which can be used by /etc/network/interfaces

Example of the /etc/network/interface output format:

auto wlan0
iface wlan0 inet dhcp
 wpa-ssid MYSSID
 wpa-psk ccb290fd4fe6b22935cbae31449e050edd02ad44627b16ce0151668f5f53c01b

My first crude solution was to use:

wpa_passphrase MYSSID PASSWORD |grep -E 'ssid|psk' |grep -v "#psk" |cut -d '=' -f 2

Which gives me:

MYSSID
ccb290fd4fe6b22935cbae31449e050edd02ad44627b16ce0151668f5f53c01b

but I don't know how to get each of those lines into their proper place in the /etc/network/interfaces format

UPDATE: With my current solution

After further attempts I managed to get it to work with this:

while read line
do
 echo "auto wlp3s0"
 echo "iface wlp3s0 inet dhcp" 
 echo -e "t wpa-ssid $line"
done < <(sudo wpa_passphrase $1 $2 |grep -E 'ssid' |cut -d '=' -f 2)

while read line
do
 echo -e "t wpa-psk $line"
done < <(sudo wpa_passphrase $1 $2 |grep -E 'psk' |grep -v "#psk" |cut -d '=' -f 2)

My solution gives the output I need, but it does not seem efficient and I would still like to see other solutions.

You can make a function as below and use awk to format the output as you want:

generate() 
sudo wpa_passphrase "$1" "$2" 

Then call generate "my SSID" "PASSWORD".

Output would be:

auto wlan0
iface wlan0 inet dhcp
 wpa-ssid "my SSID"
 wpa-psk ccb290fd4fe6b22935cbae31449e050edd02ad44627b16ce0151668f5f53c01b