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Bash Shell commandline - The power off shell

Web

 python -m SimpleHTTPServer

String operations

This is a example how powerful stringoperations are.

 #!/bin/bash
 #
 # Get ipaddress from ipconfig
 
 x=`/sbin/ifconfig`
 y=${x#*inet addr:}
 y=${x#*eth0 *inet addr:}
 y=${y%% *}
 
 echo $y

Search google bash stringoperations.

File processing

If there are a large amount of files in a directorie you can't remove them, use a loop instead;

 for i in *; do rm $i;done

To cut off a range of characters in a file you can do:

 cut -b 1-2 --complement bazaar.txt

Images

Links

• http://www.pixelbeat.org/cmdline.html
• http://www.arachnoid.com/linux/shell_programming.html

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