Wednesday, November 05, 2014

Ubuntu: pdf to images and images to pdf

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pdftoppm -png a_pdf_file.pdf img convert *.png a_pdf_file_as_img.pdf
Tuesday, November 04, 2014

Git pretty tree alias

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git config --global alias.tree "log --graph --full-history --all --color --pretty=format:\"%x1b[31m%h%x09%x1b[32m%d%x1b[0m%x20%s\...
Tuesday, September 23, 2014

rename with grouping

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rename "s/(\d\d)/0\$1/" 28/ The code will rename folder named "28" into "028".
Thursday, September 04, 2014

Firefox OS MultiROM build from 4th September 2014 for Nexus 5

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Following this guide , I built the current (4th September 2014) Firefox OS from git repositories for Nexus 5 for MultiROM .  The guide expl...
Monday, August 04, 2014

ImageMagick: resize images to specific width or hight

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For example to resize tif images to width of 512 pixels: mogrify -resize 512 *.tif Whereas to resize tif images to height of 512 pixels: ...
Tuesday, July 29, 2014

Git: Show updated tree of branches in console

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To do this, just add the following to ~/.gitconfig [alias]   tree = log --graph --all --decorate --pretty=oneline --abbrev-commit Then git ...
Wednesday, July 23, 2014

Gnome 3.12: Add VirtualBox machine to gnome's activities and dash

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Specific virtual machines can be launched directly from gnome activities or gnome dash without the need to start standard Virtual Box GUI. F...
Tuesday, July 22, 2014

Gnome 3.12: Auto start applications with a delay

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In gnome, applications can be start by copying *.desktop files into ~/.config/autostart . The installed desktop files of your application...
Sunday, July 20, 2014

Imagemagick: Flattening tiff images

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mogrify -alpha off -colorspace gray -depth 8 -flatten *.tiff

Ubuntu: Fix ntfs parition on usb drive

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If there are problems with mounting usb thumb drive (in my case the usb is /dev/sdc1), one can use this: sudo ntfsfix /dev/sdc1