IPv4 File Parser Linux Command Line

This single line of code grabs any IP address from a list of files and sorts them and removes all duplicates then puts them in a file with and extension of .ip

 

for file in *; do cat $file | grep -o ‘[0-9]\{1,3\}\.[0-9]\{1,3\}\.[0-9]\{1,3\}\.[0-9]\{1,3\}’ | sort -n -t . -k 1,1 -k 2,2 -k 3,3 -k 4,4 | uniq -u >> $file.ip; done

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Generating Random Words

I was screwing around this morning and I needed some random words to test something with. The words needed to bereal words, not just random sequences of characters (btw, you can generate a random sequence of 8 characters from the shell using jot -r -c 8 a z | rs -g 0 8). In this case, I decided to simply grab a random word from /usr/share/dict/words.

Hmm, but how do I grab a random word from a file? My solution was to generate a random number in the range [1..n]where n is the number of lines in the file, cat -n the file so that line numbers are printed, grep for the line matching the random number, then print out the second column. It looks like this:

$ n=$(cat /usr/share/dict/words | wc -l)
$ cat -n /usr/share/dict/words | grep -w $(jot -r 1 1 $n) | cut -f2
idic
$ cat -n /usr/share/dict/words | grep -w $(jot -r 1 1 $n) | cut -f2
goldentop
$ cat -n /usr/share/dict/words | grep -w $(jot -r 1 1 $n) | cut -f2
Hamitism
$ cat -n /usr/share/dict/words | grep -w $(jot -r 1 1 $n) | cut -f2
accumulativeness
$ cat -n /usr/share/dict/words | grep -w $(jot -r 1 1 $n) | cut -f2
ratihabition

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Locating Apps from the Command Line

The other day I needed to find the location of an application using its bundle ID. Easy, just use LaunchServices. But I needed to do this from a script. Here are a couple perl one-liners to do it.

$ perl -MMac::Processes -e 'printf "%s\n", LSFindApplicationForInfo(undef, "com.apple.TextEdit")'/Applications/TextEdit.app$ mv /Applications/TextEdit.app ~/Desktop/
$ perl -MMac::Processes -e 'printf "%s\n", LSFindApplicationForInfo(undef, "com.apple.TextEdit")'/Users/jgm/Desktop/TextEdit.app$ mv ~/Desktop/TextEdit.app /Applications/
$ perl -MMac::Processes -e 'printf "%s\n", LSFindApplicationForInfo(undef, undef, "TextEdit.app")'/Applications/TextEdit.app

(Yes, I know mdfind could do something similar. But it wouldn’t necessarily return the one that LaunchServices thinks is the “preferred” one if there were multiple applications with the same bundle ID.)

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Judge Upholds German Preliminary Injunction

The hearing regarding the preliminary injunction in the German Apple v. Samsung case is currently under way. Biggest revelation so far? Samsung is accusing Apple of 27 (!) cases of altering pictures, all done to make Samsung’s products appear more similar to Apple’s than they really are. Like last time, Andreas Udo de Haes, editor at WebWereld.nl, present in the court room, is covering this. Update: It’s on. Update II: Apple claims official picture of Galaxy Tab is rigged. Update III: Lolwut Apple? Update IV: Neelie Kroes is on the edge of her seat. Update V: The judge has upheld the German preliminary injunction. Final ruling on September 9.

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Announcing Opa: Making Web Programming Transparent

“Opa, a new opensource programming language aiming to make web development transparent has been publicly launched. Opa automatically generates client-side Javascript and handles communication and session control. The ultimate goal of this project is to allow writing distributed web applications using a single programming language to code application logics, database queries and user interfaces. Among existing applications already developed in Opa, some are worth a look. Best place to start is the project homepage which contains extensive

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Aaron Seigo Talks About the KDE SC 5.0, More

“After years of focusing on further improving KDE4 two weeks ago the developers of the free desktop announced the next big step for their project: KDE Frameworks 5.0. But as long-time developer – and Plasma team leader – Aaron Seigo points out in an interview with derStandard.at/web, the source-incompatible changes shall be held to a minimum. Also calls Frameworks 5.0 only the “first step”, new Applications and Workspace releases are to follow later, Seigo goes on to talk about the chances in the mobile market with Plasma Active and further areas of collaboration with the other big free desktop: GNOME.”

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* Apple Shouldn’t Allow Itself To Be A Victim Of Robin Hood *

I thought OSNews would be a good forum to talk about a matter that has been weighing on my mind lately primarily because the site has been so focused on Apple’s patents and litigation as of late. The news that HP, the largest PC manufacturer in the world is spinning off or getting out of this business is what really prompted me to write this article. Read more on this exclusive OSNews article…

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Ubuntu Linux bets on the ARM server

Would you believe that ARM processors, those little chips that power so many smartphones and tablets, have a future on servers? Ubuntu does.

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HP TouchPad to Run Android Thanks to TouchDroid

What happens when that “new gadget smell” wears off, though? The honeymoon effect with your new, heavily-discounted device wears off and you’re left with a tablet that isn’t likely to get any better than it is right now unless you do something yourself. The Preware community already has a nice collection of things you can do to play with any WebOS device, but even that has its limits. So, what are you to do with that shiny new tablet? Well, eventually, you’ll be able to put Android on it.

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A Linux Distribution Engineered for Penetration Testing

Linux, which is a very versatile operating environment, caters for an array of different needs of different users. One such specific usage of Linux is in the area of computer security and penetration testing. Among the digital forensic tools available for Linux, BackTrack is well known as an all-in-one platform that offers security professionals all the tools that they may need to carry out various security related tasks.

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