Posted by Javeed Abdul on February 7, 2010 under Linux | 
Below list of Linux cheat sheets can be used by everybody who administer Linux operating system including beginners/newbies and bearded gurus.
PDF | Command Line Interface (CLI), Security, Networking
Posted by Javeed Abdul on under Entertainment, Funny, Interesting |
Since I “work with computers” I tend to get asked to do fair amount of unofficial technical support for family and neighbours. I’ve noticed that the same confusions about IT crop up again and again. Here’s my top ten.
(Note that due to my background this is going to be Windows-centric. Please don’t take this to mean that I think Windows PCs are unfriendly – it’s just I don’t know enough about other systems to be able to comment. I also don’t want to come across as elitist – if non-IT people don’t understand something, that’s not because they’re dumb – it’s because we haven’t made computer systems obvious enough.)
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Posted by Javeed Abdul on under Linux, Sun Solaris |
| Keyboard shortcut |
Action |
| Navigation |
| Ctrl-A |
Go to the beginning of the line (note that if you use GNU screen, you can use the Home button to do this, especially considering that Ctrl-A is a special control character in screen). |
| Ctrl-E |
Go to the end of the line (note that if you use GNU screen, you can use the End button to do this). |
| Alt-B (or ESC, left arrow) |
Jump back one word using a non-alphanumeric character as delimiter. |
| Alt-F (or ESC, right arrow) |
Jump forward one word using a non-alphanumeric character as delimiter. |
| Ctrl-PGUP or Shift-PGUP |
This may or may not work, and it works differently on different console apps. It will either scroll up one line at a time, 1 page at a time, or it may not work at all. I’m inclined to think it’s not a bash shortcut at all. |
| Ctrl-PGDN or Shift-PGDN |
Same as the above but scrolling is done in the opposite direction. |
| Up/Down |
Previous/Next command in history. This one is way too obvious but I’m including it for completeness. |
| Ctrl-R |
History search. For example, Ctrl-R svn Ctrl-R Ctrl-R … will cycle through all recently run commands with the ‘svn’ in them. It is one of the most useful shortcuts in bash. |
| Command Line Manipulation |
| Ctrl-W |
Cut one word backwards using white space as delimiter. |
| Alt-BACKSPACE |
Cut one word backwards using a non-alphanumeric character as delimiter (different from Ctrl-W, for example, abc;bcd will cut to abc;). |
| Ctrl-K |
Cut everything forward to end of line. |
| Ctrl-U |
Cut everything backwards to beginning of line. |
| Ctrl-T |
Transpose the current character with the previous one. I almost never use this. Never mind, I never use it, but someone might find it useful. |
| Alt-T |
Transpose the word at cursor with the one before cursor. In other words, swap them around. |
| Ctrl-Y |
Paste whatever was cut by the last cut command. |
| Ctrl-V |
Insert the next character literally. For example, Ctrl-V TAB inserts the actual TAB character. This shortcut is often misunderstood because of mistyping Ctrl-V and not realizing what it does. |
| Ctrl-_ |
Undo the last command. Don’t forget – it’s Ctrl-Shift-MINUS, not Ctrl-MINUS. |
| Alt-R |
Revert all changes to current line. Very useful if you accidentally modify a command in history. |
| Alt-U/Alt-L/Alt-C |
Uppercase/lowercase/capitalize from cursor to end of word and move cursor past end of word. |
| Terminal control |
| Ctrl-L |
Clear screen while keeping whatever is already typed in the command line intact. |
| Ctrl-S |
Suspend currently running terminal. |
| Ctrl-Q |
Unsuspend the terminal suspended by Ctrl-S. You need to be aware of this shortcut because 99% of the time you’ve accidentally pressed Ctrl-S and need to undo its effects. |
| Ctrl-Z |
Suspend the currently running process (usually followed by bg to resume it in the background or fg to resume in the foreground). |
| TAB |
Autocomplete. Start typing, then hit TAB. You will either get a list of possible completion values (2 TABs needed) or the only choice will be filled in (only 1 TAB is needed). This shortcut is quite obvious and well known, so I put it at the bottom of the list. |
Posted by Javeed Abdul on under Linux |
Linux is a hacker’s dream computer operating system. It supports tons of tools and utilities for cracking passwords, scanning network vulnerabilities, and detecting possible intrusions. I have here a collection of 10 of the best hacking and security software tools for Linux. Please always keep in mind that these tools are not meant to harm, but to protect.
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Posted by Javeed Abdul on February 6, 2010 under Web Design |
Feel free to check out these Innovative Photoshop Tutorials for Creating Web Design Layouts and take a look at the tips shared by the authors. You may be amazed at how simple procedures can create spectacular effects. Apart from the learning experience that you will gain, you’ll also enjoy the reading through this article!!!
The tutorial will help you create a web layout with minimal designs.
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Posted by Javeed Abdul on under Linux |
Hardware
Getting ram information
cat /proc/meminfo
or if you want to get just the amount of ram you can do:
cat /proc/meminfo | head -n 1
Another fun thing to do with ram is actually open it up and take a peek. This next command will show you all the string (plain text) values in ram.
sudo dd if=/dev/mem | cat | strings
Getting cpu info
Sometimes in troubleshooting we want to know what processor we are dealing with along with how much cpu is currently being used by our OS and programs. We can do this with these two commands.
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Posted by Javeed Abdul on under Interesting, Windows |
Firefox. Internet Explorer. Chrome. Safari. Opera. We’ve pretty much all heard of them by now. They’ve been fighting for market share for the past few years (Internet Explorer has been fighting for it for a lot longer than that), and it’s unlikely any of them will ever come out the absolute winner. They try to be all things to all people. And that’s great.
Except…
What if you’re looking for a browser that does just the things you want to do online? What if you’re sick of all the browser-war hubub and want something that’s truly unique and different (and, maybe, works better than the mainstream options)? What then?
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Posted by Javeed Abdul on under Windows |
With all these thousands being presented to you, it’s hard to decide which apps to use and which ones to discard. To make it easier for you, we have managed to compile a list of the top 15 absolute must-have tools for everyday tasks.
[Update: This list is continuously updated ]
These are the essential programs that we recommend you install and keep on your arsenal.
1. Firefox / Chrome (Web Browser)
2. AVG Anti-Virus (Anti-virus Software)
3. Auslogics Disk Defrag (Disk Defragmenter)
4. Glary Utilities (System Maintenance)
5. Malwarebytes (Spyware Removal)
6. 7zip open all type of zip files
7. Google Picasa Software (Photo Management)
8. doPDF (PDF Printer)
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Posted by Javeed Abdul on January 30, 2010 under Interesting, Linux, Sun Solaris |
Recently a build of Google’s Chrome OS was released for testing. Though it’s not ready for prime time, you might want to test it out in a virtual machine. Today we take a look at how to setup and run it in VirtualBox.
Note: In this example we are using VirtualBox 3.0.12 running on a 32-bit version of Windows 7 Ultimate.
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