I’m working on a little Project called “leMensa”. Maybe later I’ll tell you more about it.
While working on it I needed to build some xml documents with pyxml.
Here’s what I found. A little help from Matt Croydon was all I needed to know.
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I needed this for a challenge. If you need to reuse the values, it’s much faster with the memo.
#!/usr/bin/python memo = {0:0, 1:1} def fib(n): if not n in memo: memo[n] = fib(n-1) + fib(n-2) return memo[n] print fib(100)
$./fib.py 354224848179261915075
Just al little python script for preforming a Atbash encryption (roman alphabet). This type of cipher is older than Caesar cipher
Maybe you can use it.
-> Wikipedia article
clear="abcdefghijklmnopqrstuvwxyz 1234567890" c="" for i in sys.argv[1].lower(): index=clear.index(i) c=c+clear[abs(len(clear)-index-1)%len(clear)] print c
Example:
$ ./atbash.sh "This Is A Little Test" r32sk2sk0kz2rrz6kr6sr $ ./atbash.sh "$(./atbash.sh "This Is A Little Test")" this is a little test
Here’s are 2 little scripts I wrote today for encoding/decoding XOR encrypted text.
Script 1 (HexXorEncode.py) takes a string/text and a integer key value. Then it preforms and xor encryption on the string with the given key.
#!/usr/bin/python import sys #Copyleft m.puchalla 2010 #Preforms a XOR Encoding with a specific string and returns a hexadecimal representation of it if(len(sys.argv)!=3): print "Usage:",sys.argv[0]," [String] [integer key]" def baseN(num,b,numerals="0123456789abcdefghijklmnopqrstuvwxyz"): return ((num == 0) and "0" ) or ( baseN(num // b, b).lstrip("0") + numerals[num % b]) s=sys.argv[1] key=baseN(int(sys.argv[2]),2) sol="" for i in range(0,len(s)): sol=sol+baseN(int(str(baseN(ord(s[i]),2)),2)^int(key,2),16) print sol
Example:
$ ./HexXorEncode.py "this is a little test" 25 6d71706a39706a39783975706d6d757c396d7c6a6d
Here’s script number 2 (HexXorDecode.py) which simply reverses the process.
#!/usr/bin/python import sys #Copyleft m.puchalla 2010 #Decrypt a hex xor coded string with a key if(len(sys.argv)<3): print "Usage:",sys.argv[0]," [XOR Code String] [integer key]" sys.exit(1) def baseN(num,b,numerals="0123456789abcdefghijklmnopqrstuvwxyz"): return ((num == 0) and "0" ) or ( baseN(num // b, b).lstrip("0") + numerals[num % b]) s=sys.argv[1] key=baseN(int(sys.argv[2]),2) sol="" for i in xrange(0,len(s)-1,2): sol=sol+chr(int(str(baseN(int(s[i]+s[i+1],16),2)),2)^int(key,2)) print sol
Example:
$ ./HexXorDecode.py "6d71706a39706a39783975706d6d757c396d7c6a6d" 25 this is a little test
If you like it, use it.
Finally I found an awnser:
NOTE: This is only for Mac, I don’t know how to do it on a Windows machine.
1. connect your iPhone to your Mac
2. close the starting iPhoto for the last Time 
3. open up the “Image Capture” (eng) / “Digitale Bilder” (de) Application
4. select your iPhone and choose “No Application” in the DropDown List.
5. close it and enjoy connecting your iPhone without the annoying autostart
I need to test the speed of some proxy server. Here’s a little script on how I achieved this.
I have a text-file ‘proxy.list’ which looks like: (I took out the last two digits of the ip).
...[lot's of ip's]... 193.196.*.*:3124 Germany 143.205.*.*:3127 Austria 64.161.*.*:3128 United States .....
Here is the script which will run through the list of all proxy and will download 5 test pages from a specific site. Then it will determine the period of time which is needed for execution. It’s create/append to a file ‘time.list’ which will contain the needed Information to determine the best proxies. You also need to create a subdirectory called ‘raw_proxy’ where the raw html code is save that you retrieve from the proxies. The files are named ”raw_proxy/$ip.$port.$i.tmp’ where $i is the i.th test page you downloaded. I need to keep those files to determine if the proxy send me the right file or e.g. a login page .
#!/bin/bash size=$(cat proxy.list | wc -l) while read proxy do #determine the first parameter (IP:Port) ad=$(echo $proxy | awk '{print $1}') ip=${ad%:*} #extract ip port=${ad#*:} #extract port #set and export the proxy settings http_proxy=$ip:$port && HTTP_PROXY=$http_proxy && export http_proxy HTTP_PROXY #save start timestamp start=$(date +%s) #download 5 pages #(yes I know 'seq' but I'm on Mac and I needed a sth. quick&dirty) for i in $(echo "1 2 3 4 5") do #use wget to retrive the page. We want to try 1 time and set some specific timeouts. + we force to use a Mozilla User agent to hide that we are using wget. wget -O "raw_proxy/$ip.$port.$i.tmp" --tries=1 --dns-timeout=10 --connect-timeout=8 --read-timeout=15 -U "Mozilla/5.0 (compatible; Konqueror/3.2; Linux)" "http://www.yourTestPage.com/$i.txt" &> /dev/null done #save end timestamp end=$(date +%s) #calculate the difference diff=$(( end - start )) #append this info to time.list echo -e "$ip:$port\t$diff" >> time.list #to have a nice and shiny output I use figlet, this is optional, if you don't want it comment out next 3 lines or just remove ' | figlet' clear echo "PC: #"$size" - "$diff"s" | figlet sleep 1 size=$(( size-1 )) done < proxy.list
If you used figlet your output looks like this:
____ ____ _ _ __ _____ _ ____ ___ | _ \ / ___|_ _| || |_ / /_|___ // | |___ \ / _ \ ___ | |_) | | (_) |_ .. _| '_ \ |_ \| | _____ __) | | | / __| | __/| |___ _ |_ _| (_) |__) | | |_____| / __/| |_| \__ \ |_| \____(_) |_||_| \___/____/|_| |_____|\___/|___/
It shows how much proxies need to be checked and shows the last execution time.
After the script has finished you need to get a list of which proxy was best.
This is the command line which evaluates everything and gives me back a list of ip’s sorted by access time. It also removes all proxies where the downloaded page had a size of 0B.
#command line to list proxy with lowest time to download clear && while read line; do ip=${line% *};time=$(echo $line | awk '{print $2}');ip=${ip%:*};echo -e $ip"\t"$time"\t"$(ls -alshr raw_proxy/ | grep 1.tmp | grep $ip | awk '{print $6}'); done < <(tr -s ' ' < time.list | sort -n -r -k2 | cut -d' ' -f3) | grep -v "0B"
This is the output:
201.22.*.* 43 52K 196.213.*.* 43 13K .... 147.102.*.* 1 2,1K 132.227.*.* 1 2,1K .... 130.75.*.* 1 52K
If you know the filesize the you can append a
| grep "52K"
to the last command to show only files which have the right size.
This is it
I know that out there are better and fast implementations to do this but …
but it was fun
I just read about the unix tool ‘figlet’. One can create some kind of ascii art text.
Let’t dive into it quickly:
cbo$ figlist | while read font; do figlet -f $font "$font"; echo $font; done Figlet fonts in this directory: ##### ## # # # # ###### ##### # # # # ## # ## # # # # ##### # # # # # # # # ##### # # # # ###### # # # # # # # ##### # # # # # ## # ## # # # ##### # # # # # # ###### # # banner _ _ | | (_) | |__ _ __ _ | '_ \| |/ _` | | |_) | | (_| | |_.__/|_|\__, | __/ | |___/ big _| _| _| _|_|_| _| _|_| _|_|_| _| _| _| _| _| _| _| _| _|_| _| _| _| _| _| _| _| _| _|_|_| _| _|_| _|_|_| _| _| block _ _ _ _ _ _ / \ / \ / \ / \ / \ / \ ( b | u | b | b | l | e ) \_/ \_/ \_/ \_/ \_/ \_/ bubble +-+-+-+-+-+-+-+ |d|i|g|i|t|a|l| +-+-+-+-+-+-+-+ digital _ _ _ | |_(_)_ ____ _(_) | __| | '__\ \ / / | | |_| | | \ V /| | \__|_|_| \_/ |_| ivrit _/ _/ _/_/ _/_/_/ _/_/_/ _/ _/_/_/_/ _/ _/ _/ _/ _/ _/ _/ _/ _/ _/ _/ _/_/_/ _/_/_/ _/ _/ lean ._ _ o._ o | | ||| || mini mnemonic mnemonic o , __ ,_ _ _|_ / \_/ / | | |/ \_| \/ \___/ |_/|_/|__/ |_/ /| \| script | | __| __ \ _` | _` | _ \\ \ \ / \__ \ | | | ( | ( | ( |\ \ \ / ____/_| |_|\__,_|\__,_|\___/ \_/\_/ shadow __ __ _____/ /___ _____ / /_ / ___/ / __ `/ __ \/ __/ (__ ) / /_/ / / / / /_ /____/_/\__,_/_/ /_/\__/ slant _ _ ____ __ __ _| | | (_-< ' \/ _` | | | /__/_|_|_\__,_|_|_| small , , _ ,_ o _|_ / \_/|/|/| / \_/ / | | |/\_| \/ | | |_/ \/ \__/ |/|/|_/ |_/ (| smscript | | (_-< ` \ (_-< \ _` | _` | _ \\ \ \ / ___/_|_|_|___/_| _|\__,_|\__,_|\___/ \_/\_/ smshadow __ __ ___ __ _ ___ / /__ ____ / /_ (_-</ ' \(_-</ / _ `/ _ \/ __/ /___/_/_/_/___/_/\_,_/_//_/\__/ smslant _ _ _ ___| |_ __ _ _ __ __| | __ _ _ __ __| | / __| __/ _` | '_ \ / _` |/ _` | '__/ _` | \__ \ || (_| | | | | (_| | (_| | | | (_| | |___/\__\__,_|_| |_|\__,_|\__,_|_| \__,_| standard
You can pipe any string into figlet
cbo$while [ 1 ]; do clear date +%r | figlet sleep 1 done ___ _____ ____ ___ ____ ___ / _ \___ /_|___ \ / _ \ _| ___|/ _ \ _ __ _ __ ___ | | | ||_ (_) __) | | | (_)___ \ (_) | | '_ \| '_ ` _ \ | |_| |__) | / __/| |_| |_ ___) \__, | | |_) | | | | | | \___/____(_)_____|\___/(_)____/ /_/ | .__/|_| |_| |_| |_|
Just a little test entry from command line. THX http://blog.raamdev.com/category/technology/programming/bash
Q: Does Google know Leipzig ?
A: Well yes it does, but it’s not that good.
A friend (thanks Micha), just gave me this Google Maps link where you can see the “Völkerschlachtdenmkal”. By mischance the put it in the wrong place. For those of you that been to Leipzig see yourself:
Here’s a screenshot of hte ‘bug’
To see if Google took note of this fault check the Live Map below
Größere Kartenansicht
Stackoverflow
CO2 neutral
