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UNIX

Linux sys-unconfig: Reconfigure the System Upon Next Boot

I can use unconfigure command on a previously configured Solaris Unix box and leave it in an unconfigured state. How do I unconfigure CentOS Linux OR RHEL 6.x on HP server. How do I reconfigure the system upon next boot?
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HowTo: Reverse a String In Unix / Linux Shell?

How do I reverse lines of a file or files under Linux or Unix like operating systems?
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Bash Shell Script To Test For Empty Folder

How do I check if a directory contains files? How do I find out if a directory contains files using bash shell under Linux or Unix like operating systems?
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Linux / Unix: Find Hidden Directories, Files and Folders

I‘m a new Unix user and trying to find the hidden directory called .movies but I do not know where it is on the file system. How do I find a hidden folder or directories under Unix like operating systems?
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Bash: Get The Last Argument Passed to a Shell Script

I‘m writing a bash wrapper script that will pass arguments to the command. I need to find out the last argument if I call the wrapper as follows:

./wrapper -a -b –longarg=foo thisfilename.txt
./wrapper -a -b thisfilename.txt
./wrapper -a –next=true thisfilename.txt

Where,
=> $@ is all of them.
=> $0 is script name.
=> $1 is first arg.

I want thisfilename.txt stored in a shell variable called $last. How do I find the last argument passed to a shell script written in bash or ksh under Unix like operating systems?
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WordPress: Disable Post Revisions / Turn Off Revisions

How do I disable post revisions feature found in wordpress version 2.6.x and v3.x.x based blog site?
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Firefox Disable / Hide New Tab Page

I‘ve upgraded to Firefox v13. However, I don’t like the new tab page. I’m concerned about my privacy. How do disable or hide new tab page while using Firefox browser version 13? How do you get rid of the “new tab” page that shows recently visited pages?
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Unix Copy Command Examples [ cp command ]

How do I copy files under Unix operating system using ksh or csh or bash shell prompt?
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Linux / Unix: Generate A MD5 String

I need to generate a md5 hash for given string. It will be used by shell script to generate keys for remote web service or cryptographic application. How do I generate a md5 hash based on any input string under Linux or Unix like operating systems?
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Linux / Unix: Bash Shell See All Exported Variables and Functions

How do I see a list of all exported variables and functions under Unix bash shell?
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