PNG(s) to PDF, the command line way

Categories: Imaging Tips Utilities
A quick tip for command line users: if you want to convert .png files to .pdf: convert *.png filename.pdf Simple! If you want to keep control of page sequence or specific files to convert: convert page1.png page2.png page3.png filename.pdf Needless to say, but I’ll say it anyways, the .pdf won’t be in vector graphics, so not scalable but that is because .png is not a vector graphics format.

Diff with vimdiff

Categories: Tips Utilities
For those who are vim fans, a quick tip on how to run a diff/merge task: Open the files with: vimdiff file1 file2 file3 – Vertical split is default vimdiff -o file1 file2 file3 – If you’d like horizontal split of files To jump between files: Ctrl-W w To jump places where differences are found: ]c – to see next part of a change [c – to go back to the start of a previous part of a change These are just the quick basics, there are a ton of other commands listed on Vim’s documentation page.

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Encrypt files with GnuPG

Categories: Tips Utilities
Here is a simple and quick way for you to encrypt files in Linux: gpg –output doc.gpg –encrypt –recipient [email protected] original_file.doc Further explained: –output (or -o) is the name of the encrypted file –recipient (or -r) is the person who will be decrypting the file. If the file is for yourself only, use the email address of your GPG key. To decrypt: gpg --output output_file.doc --decrypt doc.

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Gwibber microblogging app now 2.0 [Linux]

Categories: Utilities
Gwibber, an open source microblogging app for Gnome has now reached version 2.0! Although at 2.0, the developers are not considering this a stable release yet and not making it available on the stable distribution channels. What I could notice first from the upgrade was the UI from: to Which means: it is now easier to jump between different accounts (Gwibber supports Identi.ca, Twitter, Facebook, Digg, StatusNet, Flickr and more).

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Recover deleted files with Magic Rescue

Categories: Utilities
If you’re trying to recover deleted files or files in a corrupted partition, you might want to give Magic Rescue a try. With this command-line tool you will basically be looking for specific file types (searching by their extension). So, for a massive file recovery task, it will not be a good approach. The program uses what it calls “recipes” as the instruction of which files to look for and how to do so.

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Arora – completely FLOSS Webkit browser

Categories: Utilities
If you want to run a WebKit web browser with no strings attached (unlike Safari and Google Chrome), Arora is surely worth a try. First plus is that it runs on Linux, Windows and MacOS X. It is fast, has private browsing and looks like it has some plug-in support. Another good news is the announcement Kubuntu will carry Arora as its default browser in the 9.10 release.

Compare files in Linux

Categories: Utilities Web services
Not long ago I was working with some .po files and needed a nice and simple diff program to merge 2 files. First I tried the multi-purposed text editor vim. Using vim as a diff and merge tool: with Andrej’s article I found some nice tips & tricks and the Vim manual for diff tasks. Some useful commands, “vim -o one.txt two.txt three.txt” (for horizontal split), “vim -O one.txt two.

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Gnash supports YouTube [linux]

Categories: Utilities
Gnash, the freedom alternative to Adobe Flash Player now supports displaying YouTube movies! The to-do list for Gnash is still pretty large until we’re all freely able to browse the web without the Adobe plug-in. But, at least this is some major good news I found out today. Now let’s hope html5 gives us more goodies and web developer adopters to make Adboe Flash Player even less needed. Update: I was hoping I could use Gnash completely now but unfortunately a lot of websites are still not functioning well with it (such as Google Analytics) so I had to remove it.

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Emacs – text editor on steroids

Categories: Utilities
Although it has been a round for quite some time, I’m not a coder so my experience with text editors and IDEs is very limited. To give you an example, I’ve been using on the command line the good-ol’ simple nano. But, since I’m starting to need a bit more powerful features, my search began for a more powerful program. Emacs was my first try since it has been highly rated and praised.

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Ebook reader and manager

Categories: Office Utilities
For those who like ebooks, Calibre is a great program that was created to manage pretty much any aspect of your reading files. The list of features is pretty extensive: convert files from and to epub, mobi, LRF and supports input of several other formats including PDF, html, odt, rtf amongst others; syncs to mobile reader devices (seems to work well with the iPhone/Stanza and the Kindle); convert a news feed to an ebook; scans your computer to check for all supported ebook formats so you can keep them organized, download cover art and meta data; runs on Windows, Linux and MacOS X.

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