eXTReMe Tracker
May 272015
 

In Linux Mint 16 and 17, there is a small bug in gnome-do. Well, techincally it is in a file called gnome-terminal.desktop

Searching for terminal in gnome-do in Cinnamon environment gives no results for gnome-terminal. The first entry is usually Printers. This is caused because of an omission in the gnome-terminal.desktop file.

Open terminal by searching through start menu:

locate gnome-terminal.desktop

You will usually find it at: /usr/share/applications/gnome-terminal.desktop

sudo nano /usr/share/applications/gnome-terminal.desktop

Find the line that says:

OnlyShowIn=GNOME;Unity;

To that list add X-Cinnamon so it will read.

OnlyShowIn=X-Cinnamon;GNOME;Unity;

Save the file and log out. Once you login again, terminal should appear on top of Gnome-do search as soon as you type t.

Dec 222014
 

The purpose is to to convert a 3-dimensional image file which contains X,Y and the dimensions containing RGB values to a 2D image file in grayscale. It can be done in linux command line using imagemagick.

convert <img_in> -set colorspace Gray -separate -average <img_out>

The resulting image is a 2D image generated by averaging the R,G,B arrays.

Sep 162014
 

Every once in a while as you are trying to make a .iso file from a DVD using Brasero, you might get an error saying that couldn’t retrieve the keys because of libdvdscc2.

An alternative to that is a command line tool called dvdbackup which first needs to be installed

sudo apt-get install dvdbackup

After installing that program, you can make backup of your entire dvd, unfortunately not an .iso. You can create an iso from the folder that gets generated once you backup the dvd using dvdbackup. To create a backup, open your terminal and run:

 dvdbackup -M -i /path/to/dvd/  -n Title_For_Backup -o /path/to/output/directory

To get help of dvdbackup you simply have to type in dvdbackup at the terminal.

Sep 252013
 

Before making any modification to any files, first create a backup of smb.conf file

sudo cp /etc/samba/smb.conf  /etc/samba/smb.conf.bak

The open the configuration file for editing:

sudo gedit /etc/samba/smb.conf

In the section identified as Share Definitions, insert this piece of code. The path string should be the path for folder you will be sharing. If you want others to have the ability to write to that directory –

sudo mkdir -p /path/to/shared/folder
sudo chown nobody.nogroup /path/to/shared/folder
[share]
    comment = Ubuntu File Server Share
    path = /path/to/shared/folder
    browsable = yes
    guest ok = no
    read only = no
    create mask = 0755

Once the configuration file has been saved, its time to restart the samba daemon

sudo restart smbd
sudo restart nmbd

Once the samba daemon has restarted, you need to add a list of users who can access samba folder.

sudo smbpasswd -a username

To access this directory from windows, open My Computer -> Tools -> Map Network Drive

Folder address for this share would be:

\\ip_address_of_your_server\share

NOTE: The folder is called share in the share definition. You can call it something else and edit the parameters based on the chosen share name.If you want to have access to this folder each time, make sure to save the password and check that option to reconnect at login.