TIps
Convert O’reilly Stand-Alone iPhone Books to epub Format
O’reilly are a great publisher of books related to technology/programming. They offer their books in a few formats besides the classic print. PDF, epub, or as a standalone iPhone App.
The great thing about the standalone option, is that it much cheaper than the epub or PDF version (why?). Still, you don’t want your iPhone screen full of book icons scattered everywhere (especially if you have a large number of books).
The trick is to buy the book @ AppStore as a standalone app, unpack it, pack it again as epub, and upload to any eReader (e.g. Stanza). Now you’ll have all your books centralized in one location, and you’ll keep free space on your screen for other applications.
Here’s how to do it:
› Continue reading
Bash Tip – Separate a Bash Variable From Surrounding Letters
Sometimes, you might find yourself needing to concatenate the value of a bash variable with a string.
I think it’s best demonstrated with (a somewhat artificial) example:
1 2 3 | y=h echo $yome #won't work. will print the value of the variable "yome" which is a null string (since it's not set) echo ${y}ome #works. will print "home" |
That’s it, the trick is to use the curly brackets ${var} to separate the variable from its surrounding.
Have fun 
source: @bashcookbook
About Me
My name is Amir Watad. I have a BSc. in biomedical engineering from The Biomedical Engineering school , Technion , Israel, and a BSc. in electrical engineering from The Electrical Engineering school , Technion , Israel.
I'm a Verification Engineer in Mellanox Technologies Ltd.
I love Linux, the Command Line and the OpenSource Community.
I used to write Poems (Arabic) when I was able to find time for this.
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