Author Archives: Jasleen Kaur

About Jasleen Kaur

Hi, I am Jasleen kaur, a Computer Science Student.

Reduce PDF file size in Linux

A GhostScript command can help in reducing your pdf size. $gs -dNOPAUSE -dBATCH -sDEVICE=pdfwrite -dCompatibilityLevel=1.4 -dPDFSETTINGS=/screen -sOutputFile=output.pdf input.pdf You can also use the following parameters for -dPDFSETTINGS instead of /screen: /screen – Lowest quality, lowest size /ebook – Moderate quality … Continue reading

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Welcome page is missing in Qt Creator

I am using Qt creator 3.0.1 with Qt 5.2.1 on ubuntu 14.04 32-bit. My welcome page was empty, no examples, no documentation. I searched for its solution. But some links says it is a bug unsolved, some says solved. However, after 2 … Continue reading

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commands to check Qt version and select one from many

$qtchooser -list-versions            #This will give you list of Qt versions installed on your system $export QT_SELECT=qt4        # to select qt4, simillarly can  try selecting differernt versions too.

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libboost installation

Currently, I am working on  CAD software and I need boost library for it. I am installing FreeCAD which demands minimum version of 1.33. here is list of dependencies of FreeCAD My system is giving me My system is giving me … Continue reading

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Fix broken package in Ubuntu

This problem is too common, sometimes we have some partial downloaded packages that stuck in our apt-get package manager and create troubles for us. To do this try these commands and see if any works for your case: 1) You … Continue reading

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Removing all files located

Sometimes, we need to delete all the files searched by locate command. What we do ( i do this before :P) is to go to those files path and delete them manually, one by one, which was a tedious job. So … Continue reading

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Octave 4.0 installation on ubuntu 14.04 from PPA

Octave is one of the free and open source alternative to MATLAB, can be used for numerical computations, image processing, data analysis and in many fields. Ubuntu 14.04 comes with octave version 3.8, Which has some less features needed for … Continue reading

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