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Just annotations of little "how to's", so I know I can find how to do something I've already done when I need to do it again, in case I don't remember anymore, which is not unlikely. Hopefully they can be useful to others, but I can't guarantee that it will work, or that it won't even make things worse.
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Old

More than two-and-a-half-fold decrease in ~/.thumbnails disk usage with pngnq

Posted 05-07-2014 at 02:32 AM by the dsc (linux-related notes)
Updated 05-07-2014 at 02:43 AM by the dsc (dependency)
Tags thumbnails

The shared thumbnail folder can be quite sizeable on linux (or whatever OSs follow the freedesktop.org specifications), you won't have much trouble finding forum threads of people asking if it's OK to delete it, because it's occupying too much space.

One of the reasons it occupies so much space is because the thumbnails are set to be PNG files, which are comparatively large by nature. Thumbnails for a folder full of JPEGs of moderately medium-large resolution (about 800-1200x800-1200)...
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Posted in Uncategorized
Views 119 Comments 0 the dsc is offline
Old

Script to quickly set the wake-alarm power on

Posted 04-27-2014 at 11:40 PM by the dsc (linux-related notes)
Updated 04-27-2014 at 11:43 PM by the dsc
Tags wakealarm

I think it's working. Issuing "set-alarm 6:00" will set the computer to automatically turn on the next day at 6am, or the same day, if the script was executed after midnight already.


Information about the whole thing, read before trying anything, no warranties/responsibilities whatsoever and all that, actually by having some trouble with the script you warrant ME the legal rights to sue YOU for a billion dollars and/or have you as my free butler for life:
...
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Posted in Uncategorized
Views 191 Comments 0 the dsc is offline
Old

How to fix (possibly) wrong icon appearing for hp-systray

Posted 04-17-2014 at 05:37 PM by the dsc (linux-related notes)

Depending on your DE configurations -- probably if you use KDE or mainly KDE/qt applications (I'm on Openbox, but I have "export DE=KDE" on my autostart for some reason), or perhaps if you use tint2, HP systray applet may show up with non-responsive "stolen" icons from neighbor applications and behave oddly in general.


It's generally set to autorun by there being a file "/etc/xdg/autostart/hplip-systray.desktop". All you got to do is to edit such...
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Posted in Uncategorized
Views 190 Comments 0 the dsc is offline
Old

Gruesome PDF to JPG converter script

Posted 03-28-2014 at 08:57 PM by the dsc (linux-related notes)
Updated 04-10-2014 at 12:11 PM by the dsc (fixing a bug)
Tags pdf

Requires gs, imagemagick, jpegoptim, cpulimit, and "coolloop" (or maybe not).

Has no options or anything.

You run it like:

howeveryounameit.sh appropriate-filename portable-document-file-to-convert.pdf

The result will be:

appropriate-filename-001.jpg, appropriate-filename-002.jpg and so on.

So you don't add numbers or extension on the first parameter ($1). I guess it may not deal well with spaces...
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Views 242 Comments 0 the dsc is offline
Old

Ugly script to sleep "accordingly" to CPU temperature, on loops

Posted 03-28-2014 at 08:40 PM by the dsc (linux-related notes)

Sometimes you have a script or one-liner loop thing that may put quite a heavy load on the CPU, that can be at least bothersome due to the noise of the fan, or somewhat worrisome if the temperature approaches or goes beyond what the processor specifications recommend, and yet the system doesn't do anything by itself to avoid it.

One could simply add some arbitrary, constant sleep time within the loop, but that will likely make the whole thing slower than it needs to be. If within...
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Posted in Uncategorized
Views 179 Comments 0 the dsc is offline

  



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