Security researchers from Red Hat have uncovered a new exploit in the common "Bash" command shell found in OS X, Linux, AIX and many other *nix platforms which can be used to deploy malicious code with minimal effort. Due to the ubiquity of the Bash shell, the exploit can also affect a wide variety of different web-connected devices and properties, including unsecured websites, smart home appliances, servers, and more.

As mentioned above, this vulnerability is not limited to only one platform but in the same time in doesn't affect the average consumer because even if they have "bash" in their computers, they do not use it in a way that it can be vulnerable. Unless you are using your computer as a server that accepts commands from untrusted sources (like web servers for example) (and then only if it sets environment variables based on commands from untrusted sources) you do not have to worry about.

In this tutorial I will show you how to repair a sparsebundle image. It's not difficult but it can take some time, depending of the size of your image.
Also, please do note that some images are so damaged that they cannot be repaired so do not throw stones at me if you cannot fix yours.

Tutorials, manuals and other useful information related to HP-UX OS and its hardware.

How to replace tab with newline:

gz@linux:~$ cat list
str1    str2    str3    str4    str5    str6    str7    str8
gz@linux:~$ cat list | tr '\t' '\n' >list2
gz@linux:~$ cat list2
str1
str2
str3
str4
str5
str6
str7
str8

How to get different parts of a string, for example with path and file name:

gz:tips# foo=/tmp/dir/filename.tar.gz
gz:tips# echo ${foo%/*}
/tmp/dir
gz:tips# echo ${foo##*/}
filename.tar.gz
gz:tips# echo ${foo%%.*}
/tmp/dir/filename
gz:tips# echo ${foo%.tar.gz}

This corner is for AIX related docs.
You can find here tutorials, commands and other useful information.