Author Archives: Ahmed Tawfik

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About Ahmed Tawfik

Cybersecurity Professional, Systems Engineer, OSS & Linux Geek

How to extract a number from a string (not a file) in Bash

Posted on April 10, 2013 by Ahmed Tawfik

export hobba=ksjdjf123ksks export nokka=`sed “s/[^0-9]//g” <<< $hobba` echo $nokka 123 Sources: http://stackoverflow.com/questions/13055889/sed-with-a-literal-string-not-input-file, http://stackoverflow.com/questions/6388046/extract-integer-from-string-using-bash

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How to debug your bash script

Posted on April 7, 2013 by Ahmed Tawfik

Simply supply the -x parameter, e.g. bash -x myscript.sh

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How to change your hostname in Ubuntu without restarting

Posted on March 11, 2013 by Ahmed Tawfik

Replace your old hostname in the /etc/hostname file with the new one: “sudo vi /etc/hostname” Replace your old hostname beside the 127.0.0.1 in the /etc/hosts file Run the following “sudo service hostname start” Exit the terminal and open a new … Continue reading →

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This is post number 300

Posted on February 26, 2013 by Ahmed Tawfik

WoW! Way to go, this is my post number 300, but I must of course say anything useful or a good piece of new, mmmm, here it is: A free guide: Getting started with Ubuntu 12.10! http://ubuntugeek.tradepub.com/free-offer/getting-started-with-ubuntu-12.10/w_ubun04?sr=adv&_t=adv:Ubuntu%20Manual%20Project  

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Configuration for BI Publisher Server Level Log

Posted on February 26, 2013 by Ahmed Tawfik

Here are the steps to change your BI Publisher Enterprise Server to be in a debug mode: Login to BIP as Administrator Select Admin -> System Maintenance -> Server Configuration Change Debug Level to ‘Debug’ under General Properties Click on … Continue reading →

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