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Nirmik
Asked: 2012-10-27 20:28:18 +0800 CST

Command for enabling networking?

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What is the command for enabling networking and wireless using command line?

I have made a script that delays the startup apps for quicker boot times.

I have learned that disabling networking also helps in a quicker boot time.

I would like to add a command that shall enable networking and wireless in the shell script.

command-line

3 Answers

  1. Are you looking for sudo service networking start ?

    I believe network-manager handles the networking and interface on Ubuntu 12.04 so it should be like:

    sudo service network-manager start

    [EDIT]
    Just an update in support of my comment below, for automating SUDO when piping the password to it from external source use:

    echo "password" | sudo -S service network-manager start

    Which will not ask for the password interactively.

    -S Switch here make sudo to read the password from standard input and not from terminal.

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  2. When using NetworkManager (its service running) there is no need for sudo to enable/disable networking.

    Use nmcli:

    nmcli networking {on | off | connectivity}

    connectivity get network connectivity state (full/none...).

    Just for WiFi:

    nmcli radio wifi {on | off}
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  3. to start network 

    sudo /etc/init.d/networking start

    to stop 

    sudo /etc/init.d/networking stop

    to restart 

    sudo /etc/init.d/networking restart

    Source

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