connect Internet via Terminal linux

Question

I want to write a script-Ubuntu_OS- would connect to a wireless Internet so I need to know how to connect Internet via terminal in Linux. I tried many suggestions on the Internet but nothing at all

Answer 1

By your question i assume you want a script to connect to a wi-fi network using a linux script and access internet.

Scan all networks available

iwlist wlan0 scan

      Cell 14 - Address: 80:A1:D7:7A:5E:68   <<AP
                Channel:6
                Frequency:2.437 GHz (Channel 6)
                Quality=26/70  Signal level=-84 dBm  
                Encryption key:on
                ESSID:"ra"   
                Bit Rates:1 Mb/s; 2 Mb/s; 5.5 Mb/s; 11 Mb/s
                Bit Rates:6 Mb/s; 9 Mb/s; 12 Mb/s; 18 Mb/s; 24 Mb/s
                          36 Mb/s; 48 Mb/s; 54 Mb/s
                Mode:Master
                Extra:tsf=000000003621716c
                Extra: Last beacon: 1260ms ago
                IE: Unknown: 000472686561
                IE: Unknown: 010482848B96
                IE: Unknown: 030106
                IE: WPA Version 1
                    Group Cipher : TKIP
                    Pairwise Ciphers (1) : TKIP
                    Authentication Suites (1) : PSK
                IE: Unknown: 050400010000
                IE: Unknown: 2A0104
                IE: Unknown: 32080C1218243048606C

From the list select essid of wi-fi netwwork you want to connect

iwconfig wlan0 essid ID key KEY

if ESSID is "" use access-point

iwconfig wlan0 ap AP key KEY

script

#!/bin/bash
ifconfig wlan0
iwconfig wlan0 ap AP key KEY
dhclient wlan0

Answer 2

You could try using WICD network manager, it has a CLI network manager you can install.

You could also try using the Ceni script from smxi, which has worked great for me in a few cases where WICD and Gnome-network-manager were not working.

These won't really be a script to start a network connection, but both are accessible from command line and both will let you scan for networks, connect, put in keys, etc. in a nice manner.