Saeid Zebardast's Blog

Hi

Commonly used for a long strings that are frequently used. Alias allows you to have a small more familiar command or name to execute a long string.

Set an alias
Syntax
alias [name[='command']

Examples
alias command with no arguments or with the -p option prints the list of aliases:

$ alias
alias ff='firefox'
alias l='ls -CF'
alias la='ls -A'
alias ll='ls -l'
alias ls='ls --color=auto'
alias sx='startx'

Sets clr to type clear

$ alias clr='clear'

Remove an alias
Syntax
unalias [name]

Clear all Linux / UNIX bash shell aliases

$ unalias -a

Note
When the computer is rebooted all alias will be lost.

How to prevent it?
All alias must be added to .bashrc file located at your user folder (example: /home/saeid/.bashrc)

Example

$ gedit /home/saeid/.bashrc

paste:

alias clr='clear'

now you have to ‘compile’ your .bashrc file

$ source .bashrc

Now clr alias it’s saved.

Good luck

Share

Hi

I installed gOS on Ubuntu Gutsy Gibbon.
It’s nice but I prefer Gnome windows desktop environment.

If you want to install gOS , from terminal do the following (ONE LINE AT A TIME HITTING ENTER AFTER EACH STEP):

• Adding gOS repositories

  echo "deb http://packages.thinkgos.com/gos/ painful main"\
   | sudo tee -a /etc/apt/sources.list
  

  echo "deb-src http://packages.thinkgos.com/gos/ painful main"\
   | sudo tee -a /etc/apt/sources.list
  

• In the terminal enter the command to import the public key of the repository so that the signatures could be verified as follows :

  wget -q http://www.thinkgos.com/files/gos_repo_key.asc -O-\
   | sudo apt-key add -
  

• Next update your apt cache database using the command :

  sudo apt-get update
  

• To install the necessary files which will allow you to run gOS on Ubuntu, run the following apt-get command :

  sudo apt-get install greenos-desktop
  

• If you do not have enlightenment (e17) window manager (WM), then apt-get will have to download and install that too which could hike your download size by around 35 MB.

Once installed, you can select gOS/Enlightenment from sessions option in your login screen.

Good Luck

Share

Hi
Ubuntu has the root account disabled.
You use sudo to run commands as root. if you need root access for some work:

• To start a root shell, but keep the current shell’s environment, use:

  sudo -s

• To start a root shell (i.e. a command window where you can run root commands), starting root’s environment and login scripts, use:

  sudo -i

There is also a root terminal that is in the Applications menu. You have to right-click to edit the menu’s and add a check to the root terminal in System Tools items.

Don’t forget to type ‘exit’ (or press Ctrl+D) to switch back to your normal user when you are done.

• More information about sudo in Ubuntu wiki

Share

Hi
Linux users:
for download a website to a local location in Linux, you can use wget command with a some parameter.
It’s very simple:

wget URL -k -c -r -p

Share

Hi

For changing GNOME default media player, please follow steps:
1. Press Alt+F2, then enter gconf-editor to run:

2. Go to /desktop/gnome/applications/media/

3. Change value of exec key to your media player name. like Exaile:

Good bye

Share