Archive for September 9, 2007

Open RAR File in Linux(Ubuntu/Debian)

RAR is a file format for data compression and archiving. It was developed by Eugene Roshal and hence the name Roshal ARchive (Thanks to wikipedia for this information).

If you need to uncompress a .rar archive file in Linux OS, u can run the command called unrar. You can install unrar with the help of the following command,

1. If u are using Fedora core/CentOS Linux then use

yum install unrar

2. For Debian Linux,

apt-get install unrar

If the above method doesnt work, You can directly download binary package from the official site here. To be simpler use wget command as below,

$ wget http:// www.rarlab.com/rar/rarlinux-3.6.0.tar.gz

Both rar and unrar commands are located in rar directory.

After executing the above command, copy rar and unrar to the /bin directory

$ cp rar/unrar /bin

How to use unrar
unrar command supports various options below are common options that you need to use everyday.

To extract the content of the file in current directory type command:

$ unrar e file.rar

(Please note that replace file.rar filename with your actual filename).

To read the contents of rar file:

$ unrar l file.rar

To extract (x) files with full path type command:

$ unrar x file.rar

To test (t) integrity of archive, file type command:

$ unrar t file.rar

If you are using Windows OS then opening rar files is simpler by downloading Winrar utility.

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Google RSS Reader now Searchable

I have been using Google Reader for many years to check out the latest IT/Web2.0 news. It was the greatest upset that the RSS feeder from the giant search company doesnt have search functionality. But now Im exicited to see the much awaited Search box in Google Reader. With search box, u can search all ur subscribed feeds or search by category/tags.

TheĀ Google Reader blog has officially announced several new features which includes collapsible sidebar, increased unread count, in addition to the search feature.

There are many issues after this mighty update. Im using Firefox 2.0+ and I see only the upper toolbar (which includes Logo, Google Account) when I directly login into Google Reader. Later I realized that after logging into one of the other Google Services (like Mail, Docs, Notebook) Google RSS renders without any issues.
Many people are complaining that Google Reader has stopped working with Opera.

It is really amazing to see that the leading search company took so long time (almost 2 years) to add this search feature into its own RSS feeder with bugs ;)

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DocuFarm

DocuFarm is online document viewer which allows u to view DOC, PDF, RTF, XLS, PPT, PPS right on the browser without need to download on ur local computer.

If you upload a document it is automatically converted into images and it is shown as thumbnail. The document will be available on their servers so that when u view the document next time it will be fast. Hence there is a high chance that anybody can view ur document using DocuFarm search page (If the keyword is found in ur document). To avoid this kind of privacy issues after viewing the document u can click on “Remove from our cache” and by doing this u will get a message like “The document was successfully removed from our cache”. But when u want to see the same document again u will have wait till Docufarm download the document and converts into images.

If u maintain a blog/website which contains links to documents(of filetypes mentioned above) u can automatically redirect ur users to view the documents online by just including this script in ur page.

DocuFarm also provides extensions/plugins for Internet Explorer and Firefox which lets u open the document right away. So install the extension here (Firefox users) or here (IE users) to view the supported documents right on ur browser.

BTW Our Zoho Viewer is similar Online Document Viewer which I already mentioned here.

Use these Document sharing site and get rid of email attachments :)

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