Disable sudo timeout on Ubuntu in terminal

By default sudo remembers your password for 15 minutes.

Disable sudo timeout with this command:

sudo sh -c 'echo "\nDefaults timestamp_timeout=-1">>/etc/sudoers'

To re-enable sudo timeout use this command:

sudo sed -i "/Defaults timestamp_timeout=-1/d" /etc/sudoers

You can also change or disable sudo timeout with visudo.

sudo visudo

This opens an editor and points it to the sudoers file — Ubuntu defaults to nano, other systems use Vi.

To the defaults line, add :


So it will look like this:

Defaults env_reset,timestamp_timeout=20

You might want to read the sudoers manual pages for additional information.

man sudoers


Remove LibreOffice on Ubuntu in terminal

To remove LibreOffice on Ubuntu in terminal:

sudo apt-get remove libreoffice-core

If you also want to remove LibreOffice configuration files, use the purge switch:

sudo apt-get remove --purge libreoffice-core

That’s all folks!


Sed replace path with slash separators

Sed replace path with slash separators by using a different separator char.

If you have an environment variable that contains a slash like a path, let say

addons_path = /home/netjunky/projects/odoo-dev/odoo/openerp/addons

and you want to replace “addons_path = /home/netjunky/projects/odoo-dev/odoo/openerp/addons” with “addons_path = /home/netjunky/projects/odoo-dev/odoo/custom/addons” using sed, usually you would try something like this

sudo sed -i  ‘s/addons_path = */addons_path = /home/netjunky/projects/odoo-dev/odoo/custom/addons/’ /home/netjunky/projects/odoo-dev/odoo/config/openerp-server.conf

this raise an error like

sed: -i expression #1, char 9: unknown option to `s’

but if you try

sudo sed -i  ‘s|addons_path = *|addons_path = /home/netjunky/projects/odoo-dev/odoo/custom/addons,|’ /home/netjunky/projects/odoo-dev/odoo/config/openerp-server.conf

It works!!!

You can use any other separator instead of |.