runtah

One thing is for sure, something so beautiful as Linux needs exploring. You cant expect anyone to trully show its virtues that might come in handy to you. Everybody has their own cut, you have to do your.
So this other minute I was looking for some cheatsheet wallpaper to put up on my Desktop. Got a lot of them. Chose one, but the images is Black text on white backgroud, a serious problem to a maniac like me. Figured it needs some invertion, but firing up GIMP for such trivial task? :/ After a bit of drooling on ideas, Imagemagick hit my mind. One of the best tools for batch processing of images using the terminal. To install, type in:

sudo apt-get install imagemagick

There are many many options and things that can be done using this gem, cropping, resizing, inverting, even combining multiple effects. Some example commands are listed below

# Change format
convert howtogeek.png howtogeek.jpg

# Enforcing compression level
convert howtogeek.png -quality 95 howtogeek.jpg

# Resizing
convert example.png -resize 200×100 example.png
# enforce specification
convert example.png -resize 200×100! example.png
# maintain ratio
convert example.png -resize 200 example.png
# or 
convert example.png -resize x100 example.png

# Rotation
convert howtogeek.jpg -rotate 90 howtogeek-rotated.jpg

# Effects
# charcoal
convert howtogeek.jpg -charcoal 2 howtogeek-charcoal.jpg
# implode
convert howtogeek.jpg -implode 1 howtogeek-imploded.jpg
# invert
convert howtogeek.jpg -negate imploded.jpg

# Combination
convert howtogeek.png -resize 400×400 -rotate 180 -charcoal 4 -quality 95 howtogeek.jpg

You should explore the endless possibilities yourself.
NOTE: The commands have been copied from www.howtogeek.com

IPhone 5s

Problem: Display Zebra Lines

Android 4.4 is expected KitKat Google introduced on 18/10 here, this is the Android version is expected to make history when Google has promised the low profile models also good runs OS version this.

The question now arises if Android 4.4 runs good low-end machines, the old data series with the Sony

Accordingly, Sony is still growing Android 4.3 for some selected models in the Series Z line (Xperia Z, Xperia ZL, Xperia ZR, Xperia Tablet Z, Xperia Z Ultra, Xperia Z1), but an updated list of the samples to Android 4.4 longer than that. Specifically, the following models are expected to upgrade.

Z Series

Xperia Tablet S, Xperia Tablet Z

High and low Xperia M, Xperia C, Xperia M, Xperia L, Xperia S, Xperia SL, Xperia U, and many other models

The source is unclear where they got, but if this really happened, perhaps Xperia user community will be a phen "boom" with Sony. No one is "taxed dream," knows that the magic happens. The Google says the low-level flow is still running fine (with 512MB ram sources say), the Android 4.4 will be demonstrated for the old models by current manufacturers do not develop single-core models, 512MB ram again.

Source: ibtime