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

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.

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If the networking start answer makes stuff crash, it could be your delay script does something funky. Maybe you want to post the script, so we can see what you did ;) – Nanne Oct 28 '12 at 10:27

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

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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nope...error is-----> start: Rejected send message, 1 matched rules; type="method_call", sender=":1.94" (uid=1000 pid=6820 comm="start network-manager ") interface="com.ubuntu.Upstart0_6.Job" member="Start" error name="(unset)" requested_reply="0" destination="com.ubuntu.Upstart" (uid=0 pid=1 comm="/sbin/init") – Nirmik Oct 27 '12 at 6:05
@Nirmik Sorry for this late reply, anyway.. Please have a look above I have updated the commands. You need to run it under elevated privileges. – Gufran Oct 28 '12 at 10:21
also, if you want to automate the script for sudo whick will not proceed without the admin password you can store the password in script file like this echo "p@$$w0rD" | sudo service network-manager start – Gufran Oct 28 '12 at 10:29
okay the sudo thing workd but the later part you said about 'echo "the password" | command' is not working as a command when i tried to test it in the commandline – Nirmik Oct 28 '12 at 14:05
Is there any specific error ? Can you post what exactly you run in terminal, just scribble your original password before posting ;) – Gufran Oct 28 '12 at 14:09

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


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nope! it crashed whole of unity! :( – Nirmik Oct 27 '12 at 6:06
Unity crash ? hmm strange issue . hope some one will help you – Raja Oct 27 '12 at 6:15

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