trick

Interesting ping trick, it ignores leading zeros in an IP address.

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The IP address you supply the ping command with can have a leading zero or multiple leading zeros and they will be ignored by the ping command. This is an example. jason@jason-desktop:~$ ping 192.168.00001.00002 PING 192.168.00001.00002 (192.168.1.2) 56(84) bytes of data. 64 bytes from 192.168.1.2: icmp_seq=1 ttl=64 time=0.012 ms 64 bytes from 192.168.1.2: icmp_seq=2 ttl=64 … Read more

Strange bash piping method that actually does work. And fixing hard disk partitions with fsck.

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This is a strange bash piping method that actually does work. This pipes the output of one echo command and appends it to another. ubuntu ~ $ echo "Hello World" >| echo "Me" > out.txtubuntu ~ $ echo "Hello World" >| echo "Me" > out.txt This is the result of this strange command. ubuntu ~ … Read more

OpenSUSE 12.3 distribution working very well on my new laptop.

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The OpenSUSE 12.3 distribution is a Linux desktop solution that is working very well on my laptop. I decided to install it on that instead of on my desktop and everything is working a treat. I had problems getting this distribution working with ATI hardware, so I wanted it on my laptop. It had an … Read more

Very cool and interesting Linux commands.

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How to search your home directory for certain files. The find command is very useful for searching your computer for various files. john@adeptus-mechanicus ~ $ find /home/$LOGNAME -name "*.avi" /home/john/Azureus Downloads/[ www.Torrenting.com ] – The.Hobbit.2012.DVDSCR.XVID-NYDIC/The.Hobbit.2012.DVDSCR.XVID-NYDIC.avi /home/john/Azureus Downloads/[ www.Torrenting.com ] – The.Hobbit.2012.DVDSCR.XVID-NYDIC/sample/sample.avijohn@adeptus-mechanicus ~ $ find /home/$LOGNAME -name "*.avi" /home/john/Azureus Downloads/[ www.Torrenting.com ] – The.Hobbit.2012.DVDSCR.XVID-NYDIC/The.Hobbit.2012.DVDSCR.XVID-NYDIC.avi /home/john/Azureus Downloads/[ … Read more

Another good grep trick to find strings that end in numbers but you are not sure which.

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How do you search a binary file for a certain string that ends in a number; but you are not sure what the number is? Then this command will perform this task. john@adeptus-mechanicus ~/Documents/master $ strings vesperas.wad | grep -a "MAP[0-9]" MAP15john@adeptus-mechanicus ~/Documents/master $ strings vesperas.wad | grep -a "MAP[0-9]" MAP15 I was using this … Read more

Cool C programming trick, run /bin/sh with the C execve() function.

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This programming trick is pretty cool, you can run the /bin/sh shell with a C program. The execve() function is useful for running a command within a C program and passing arguments to it, but I have replaced the arguments with NULL instead, that is what you put when you do not need arguments. #include … Read more