Collection of Make Tutorials

Only 1 link so far.

• Makefiles by example

Extracting Pages from PDF

First, install PDFTK on Linux.

Then, do this command:

pdftk foo.pdf cat 2-3 output abstract.pdf dont_ask

Where foo.pdf is the original PDF file, 2-3 is the range of pages (you can type 2-end to extract to EOF), and abstract.pdf is the output PDF file.

Minimal RAR in Ubuntu

RAR is a common file format used for files distributed through the Net. Here's how to install it in Ubuntu.

$ sudo apt-get install rar

Creating an archive:

$ rar a archivename.rar files...

Add as many files & directories as you want.

Creating an archive with password:

$ rar a -ppassword archivename.rar files...

There is no space between -p and the password itself.

To extract, click on the right-mouse-button and use Archive Manager to extract.

Of course, for more advanced uses, refer to the RAR in Ubuntu Manual.

Clean Up MP3 Filenames

import os

base = '/home/maczulu/Music'
os.chdir(base)
filelist = os.listdir(base)
for file in filelist:
  if '_' in file:
    newname = file.replace('_',' ')
    print file,newname
    os.rename(file, newname)

GNOME of course!

How to install pyqt4 on ubuntu linux

Install and run "hello world" example

• Install it
  

$ sudo apt-get install python-qt4

• Create a file ~/tmp/helloworld.py

import sys
from PyQt4.QtGui import *
app = QApplication(sys.argv)
button = QPushButton("Hello World", None)
button.show()
app.exec_()

• Run it:

$ python ~/tmp/helloworld.py

You should see a window with a single button pop up.

Install additional examples

• For more examples, install the python-qt4-doc package: 
  

$ sudo apt-get install python-qt4-doc

• After installation, the examples are located at: 

/usr/share/doc/python-qt4-doc/examples