Compressing and Archiving

‘.tar’, ‘.gz’, ‘.tar.gz’, ‘.bz2′, ‘tar.bz2′, ‘.zip’. What are these strange extensions? Mostly you ll think these are all compressed files. But its better to understand exactly what these are. And why do we need them.

According to above extensions some are for compressed and some tells that they are archived.

Compressing

In linux/unix environment there are 2 main compression algorithms. They are ‘gzip’ and ‘bzip’. The difference of ‘bzip’ from ‘gzip’ is that ‘bzip’ is more capable of making smaller files than ‘gzip’. But ‘bzip’ consumes much more memory and takes time.

Howto bzip:

as usual open up your favorite terminal/konsole . Then follow the commands. I m having 4 files inside /home/dushi/test directory.

ls

now im gona compress file1.txt using bzip2.

bzip2

Thats all. Now ‘file1.txt’ is replaced by ‘file1.txt.bz2′

Lets decompress that newly compressed file back to ‘file1.txt’.

bzip2 -d

it will decompress the ‘.bz2′ file into its originals.

Howto gzip:

gzip

same as above its really simple. I’m gona compress ‘file2.txt’ using ‘gzip’. it gives ‘file2.txt.gz’.

gzip -d

use -d to decompress.

Archiving

The ‘.tar’ format is the most common archive format in linux/unix environment. They are mostly called as tarballs. Archives are not compressed files. It combines one or more files into a single file. The idea is to achieve easier storage and transportation. Specially in web.

Howto archive:

lets go back into my /home/dushi/test/ directory again.

ls

There are 4 files. Two compressed files and two normal text files. Lets archive them all into ‘MyArchive.tar’ .

tar -cf

from about cmd makes a tarball as ‘MyArchive.tar’ . To extract files from it ,

tar -xf

Thats all u should know   for more options refer,

$man tar

$man gzip

adios

Dushi’s life has changed

Last week was a hard time for me. The things I did, the things I was going to have, every thing just went upside down . I was pissed about my self. So much of pressure, so much of people to handle and so much of failures .I felt sad. I felt shame about me. Wish I had someone to share those moments . I went mad !

I did things I never have done before. I wanted to leave every thing. Go to the wild and live alone. But it’s not the way to solve things. I just can’t runway ! So I said to my self ‘ok man lets face this shit’. I questioned my self, ‘who are you Dushi?’ errrrrr…. Ya it’s a hard question for me because I never have thought of that. I figured them out.  mmm…. Let’s see…. Well do I have money? Nope. Are you excellent in your studies? Nope. Average?  Yes I think. Am I really an open guy?? Mm.. No I guess.  I’m doing that with just 2-3 people.  Do you love someone? Yes I do. Did you told it to her? Yes. So did you able to achieve her? Nope . But why? Because I got nothing for my self I think. Oh enough! ‘You are a big looooser dude!’ .   What the hell was I doing these years huh?

And does people really cares about me? I don’t feel they really care about me like I do on them . May be that’s because I play jokes always and smile with them . So they may think I’m an irresponsible fool. No people that’s not the point! That’s because I wana make you happy. That’s because I like to have that smile on those faces around me.

So finally I discovered that I’m some kind of a freak came from somewhere and now in nowhere.  Ok I’m the one who made these things happen. And now I I’m gona fix these things. Hahaaa . Easy to say huh? Yes its easy to say and hard to do. But at least gona give a try. I’m gona make up my life as I want. All I have to do is to correct the points which I made mistakes. Earn something for my self first. Not only money. Build up my potential. Be a person who every one cares. Be that open guy which I want to be. Then hunt down my love again . Try to Makeup your own life.

Thank you for reading my crap!