Posts Tagged ‘open source’

Compressed files are common place on the Internet. More often than not the files you download from the Internet contain some form of compressed files. While ZIP and RAR are the most common formats in the Windows world, tar.gz is widely used on the Linux side.

As you might be knowing that you require special software to extract these files. WinRAR and WinZIP are the most common choices. However, these are not free and after the trial period is over you may be greeted with a nag screen or not allowed to use the product all together. So its time we go looking for some alternatives.

As it stands there is just a perfect alternative for all your archiving and extracting needs. Its 7-Zip. 7-Zip is free, open source and apparently performs better than its commercial counterparts. It is available for 98/ME/NT/2000/XP/Vista as well as for Linux. Let’s just see what 7-Zip has to offer:

As soon as you fire it up you are greeted by the powerful file manager. Using it is pretty intuitive. You can perform basic functions like extracting, testing, creating or copying/moving archives

I however like to utilise the integration with Windows Shell. I am sure you will like it this way as well. 7-zip integrates tightly with the right click menu. You can choose which menu options appear in when you click an archive, so it doesn’t clutter your context menu. Just click on file and choose the appropriate action and 7-zip does the rest, quickly and efficiently

7-Zip supports creating and extracting archives which are in 7z, ZIP, GZIP, BZ2 and TAR format while it can extract (not create) archives in ARJ, CAB, CHM, CPIO, DEB, DMG, HFS, ISO, LZH, LZMA, MSI, NSIS, RAR, RPM, UDF, WIM, XAR and Z formats. That’s more file formats supported than you would ever need. A downside can be that is doesn’t allow you to create RAR archives if you use RAR a lot. As for me that is not an issue because of all the other formats that it supports. In particular the 7z format offers better compression than other formats so you might want to look into that.

Don’t take my word for it, the 7-Zip site offers details on how 7-Zip(and the 7z format) compares performance wise with some of the commercial offerings out there:

Another 7-Zip feature that I simply adore is that you can encrypt your data when you are creating an archive in 7z or Zip format. Add in a password and you have got your data protected. Additionally you can choose to encrypt the filename as well if you think the name is giving away too much of information.

Developers can also get access to LZMA SDK that allows you to use compression in your applications. Visit the 7-Zip home page for more details.

7-Zip is perfect for your daily archival needs. Its free, its open source and its better, I have never looked for anything else since I started using it. Give it a shot and let us know how you liked it

Download 7-Zip

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USB thumb drives are one of the most commonly used ways to transfer data if you happen to work across multiple computers. Lets just make the USB drives prettier, useful and secure.

1. Add icons and labels to your drive.

usb driveDownload an icon you would want to see appear when you plug in your thumb(pen) drive. Place the icon at the root of the drive. Next open notepad and type the following:


label = "<your name here>"

icon = "yourIcon.ico"

Save the file onto the root of your thumb drive and name it "autorun.inf", be sure to put the quotes or else it will be saved as a text file. Now Safely remove your USB drive and plug back in, the icon and name should appear in Windows Explorer if your did everything right. You can also automatically launch an application. If this is not the way you prefer to work use this neat application to generate the autorun.inf file automatically

2. Add a Start Menu to your USB drive

portable appsDownload and install the Portable Apps Suite on your USB drive, it not only gives you a nice start menu for your USB drive but also gives you the ability to run some of the most popular applications (like Firefox, Putty, OpenOffice, SumatraPDF, notepad++ and many more) right from your USB drive. A must have for your USB drive

3. Use Mojopac

mojopacMojopac gives you your operating environment right on your USB drive. You can be rest assured that you will find a familiar interface with Mojopac on any pc you plug your USB drive into, all the customization will be preserved from computer to computer. Moreover it lets you operate without leaving any trace what so ever on the computer, so you can be rest assured about your privacy and data

4. Write Protect your Drive

My USB drive has a write protect notch that prevents it from being written onto when plugged on a computer, this is important because if the computer you are plugging into is infected than it can readily infect your USB drive. However if your drive cannot be write protected then you can use thumbscrew. It makes anything connected to the USB non writeable until you are sure and want to make it writeable.

5. Make Autorun.inf read only and system file

Thumbscrew may prevent writing on USB devices but it has to be already present on the computer you want to plug your USB drive into, so if its not possible for one reason or the other then you should make sure that you have a custom autorun.inf file and that its read only and has the system file attribute set. This prevents malicious code from writing entries to your autorun.inf and thus even if your USB drive may have a virus it won’t actually run it automatically. So a little bit more protection but not fool proof by any means.

6. Hold down the shift key

If you suspect your USB drive may be infected but still you have to plug it in to scan and remove the infections, then when you plug it in hold down the shift key to prevent autorun if its not already disabled.

7. Encrypt your drive using Truecrypt

true cryptYou can encrypt all the data on your USB drive using Truecrypt. This fives you added security if you have some sensitive data on your USB drive. Simply run it and choose your USB device to encrypt. TrueCrypt is free, Open Source and efficient and gives you extra security, download it here.

8. Sync your drive.

Microsoft offers an excellent application specially to address all your syncing needs. Its called the SyncToy. If you have to work on the same files on two different computers than you want to have the latest version of all files all the time, this can be easily done with synctoy. It offers both oneway and twoway synching. Its also free to download. Download it here

9. Backup your drive

toucanBacking up is always a nice thing to do, specially when you have to use it on different computers. There is a portable app to make this very easy. Its toucan, you can install it on your USB drive and back up, sync and encrypt your data as and when you want. Or else there is this the USB Image Tool that creates an image of everything you have on your drive and saves it as one file.

10. Make it bootable

pen drive linuxYou can install and run Linux from your USB thumb drive, this is an excellent way to recover systems that won’t boot, or to just plug it into another computer and do all of your work using linux applications and surf the net without leaving any history on the host computer. For this try pendrivelinux

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