Ubuntu – Want to execute sudo command on shell startup

First Question

• If you dont want to enter password everytime,then you should edit sudoers file.

  sudo visudo

• Then add the following line at the end of the file.

  %username ALL=(ALL) NOPASSWD:ALL

  

• Now if you enter sudo followed by the command it wont prompt you to enter password.

Second Question

• For your second question you can add that command sudo vpnc to startup applications.

• To add that command in startup applications Goto System → Preferences → Startup Applications.

  

It isn't necessarily run; at the top of the standard .bashrc is this comment:

# ~/.bashrc: executed by bash(1) for non-login shells.
# see /usr/share/doc/bash/examples/startup-files (in the package bash-doc)
# for examples

I believe there is an option to run bash terminal as a login shell or not. With Ubuntu, gnome-terminal does not normally run as a login shell, so .bashrc should be run directly.

For login shells (like the virtual terminals), normally the file ~/.profile is run, unless you have either ~/.bash_profile or ~/.bash_login, but they are not there by default. By default, Ubuntu uses only .profile.

The standard ~/.profile has this in it:

if [ -n "$BASH_VERSION" ]; then
    # include .bashrc if it exists
    if [ -f "$HOME/.bashrc" ]; then
        . "$HOME/.bashrc"
    fi
fi

This runs .bashrc if it is available - assuming $BASH_VERSION is present in your environment. You can check for this by entering the command echo $BASH_VERSION, and it should display some information on version number - it should not be blank.