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11
votes
4answers
16k views

How to uncompress zlib data in UNIX?

I have created zlib-compressed data in Python, like this: import zlib s = '...' z = zlib.compress(s) with open('/tmp/data', 'w') as f: f.write(z) (or one-liner in shell: echo -n '...' | python2 ...
5
votes
2answers
2k views

What's the difference between tar.gz and tar.Z?

The downloads on this page, e.g. of NetCDF C/C++/Fortran 4.1.3, show tar.Z and tar.gz formats. The tar.Z doesn't even have a configure file in it. What is it used for?
10
votes
2answers
4k views

How can I view gzipped files in less without having to type zless?

I am using Ubuntu, and I would like to be able to type less compressed_text_file.gz and page the contents of the text file in uncompressed form. Is there a way to do this?
0
votes
1answer
47 views

Configure webserver for compression

Based on this page: http://code.google.com/speed/page-speed/docs/payload.html#GzipCompression I need to enable compression on my website, but I have no idea how to do this. If this is the right ...
4
votes
1answer
1k views

Does ssh compress connections in a tunnel individually?

I have one compressed SSH tunnel with one tunnel and multiple connections over it. Data in every connection tunneled is rather homogeneous, but compressing an interleaved stream will obviously make ...
5
votes
2answers
2k views

rsync-like tool that supports compression and maintains hardlinks?

I use an rsync-based backup scheme to maintain daily (and soon weekly and monthly as well) "snapshots" of my file server, using rsync's link-dest feature to store hardlinks between the snapshots for ...
6
votes
2answers
1k views

Why use cpio for initramfs?

I am making my own initramfs following the Gentoo wiki. Instead of the familiar tar and gzip, the page is telling me to use cpio and gzip. Wikipedia says that cpio is used by the 2.6 kernel's ...
1
vote
2answers
2k views

How do I turn on http compression?

I'm running a CentOS server and I want to save bandwidth, make pages faster, all that. How can I turn on http compression? Is it a module I enable for all sites? Can it be that simple?
3
votes
2answers
3k views

What Linux utility can split a large file into a multi-file archive that can be opened on Windows?

I have a 6GB file which I need to transport on DVDs. I have a Linux system, while the recipient has a Windows system. Is there any way for me to make a multi-part archive to spread the file across two ...
3
votes
4answers
331 views

Is there a way to redirect a file that is written

I have an application which I can not change, that writes to a big 250 GB plain text file. After compressing with GZ it is only 30 GB. This application has no option of compressing it's output, and ...
3
votes
1answer
2k views

initramfs image compression other than gzip

can the initramfs image be compressed by a method other than gzip, such as lzma?
7
votes
6answers
209 views

Is there any program to provide a consistent interface across multiple archive types?

At the moment, if I download a compressed file, it could be any of a .tar.gz archive, a tar.bz2 arhive, a .zip archive or a .gz archive. And each time I do so, I have to remember what the command line ...