Say I have a directory of files at /home/user1/dir1 and I want to create a tar with only “dir1″ as the leading directory: /dir1/file1 /dir1/file2 I know I can first cd to the directory cd /home/user1/ tar czvf dir1.tar.gz dir1 But when writing scripts, jumping from directory to directory isn’t always favorable. I am wondering is there a way to do it with absolute paths without changing current directories? I know I can always create [...]

I am running SSD servers because I have great experiences with performance. However I have webservers which serve lots of requests and the uncompresssed logfiles of one day tend to grow out the database. I have usual standard format Webserver log files. Is there maby a way to compress them “on the fly”? Asked by Joe Hopfgartner Logrotate This utility can automatically inform your daemon to switch logs as it renames and compresses them. Since [...]

I’m using rsync to copy files between servers, I’m using -z option what compresses data only for the network transfer stage. But I would like to leave compressed files on remote machine and I have not found this option in rsync. Is this possible ? Asked by Wojtek No, it is not possible. You’ll need to compress the data either before or after you transfer it. Answered by womble Check more discussion of this question. [...]

I am now managing Windows Server 2003 originally setup by someone else. What I noticed is that even though file compression is not turned on at the drive level (when I go to drive Properties “Compress drive to save disk space” is unchecked) a lot of files are still compressed on the disk seemingly at random. For example in “C:\Windows” folder about half of the files are compressed (appear blue in Windows Explorer and have [...]

I want max compression on my ssh tunnel cos I’m on a dialup line At the man page can one can read: CompressionLevel …..The meaning of the values is the same as in gzip(1). Note that this option applies to protocol version 1 only. What if I want max compression rate and while using ssh version 2? How know the protocol version I’m using? Asked by frankabel To know the protocol version of ssh, you [...]

I’m facing the problem that our lengthy CSS file (129 KB) gets delivered by our ASP.NET web app (running on IIS 7.5 using .NET 4.0) compressed to 24 KB on my local server machine and 36 KB on both our staging and production sites. My local OS is Windows Server 2008 R2 Enterprise, the web servers run Windows Web Server 2008 R2. I used the Fiddler to look into the requests but they seem not [...]

I’m having the following arrangement. One server compiling emails in php and another server which run postfix (thus I have network latencies). Each email is about 300Kb and so as to send an email (using Zend email class) it takes about 0.2s . However, if I compress the email text content, the size becomes 30Kb and the latency about 0.06 . The problem is that postfix doesn’t support text compression, thus I’m thinking of developing [...]

I am trying to get IIS to compress jquery.js (and all other static files, but using jquery as the example here) on my localhost, but something goes wrong. The funny part is that when I look in my %SystemDrive%\inetpub\temp\IIS Temporary Compressed Files\MySiteName, I see the jquery.js file there, and its size is 24 KB. But in the browser, according to the Net tab on Firebug, the size is 69 kb. I’ve tried the following: – [...]

Can the encryption option on Info-ZIP be used from the command line? The zip man page says: -e –encrypt Encrypt the contents of the zip archive using a password which is entered on the terminal in response to a prompt (this will not be echoed; if standard error is not a tty, zip will exit with an error). The password prompt is repeated to save the user from typing errors. Is there a way to [...]

Can the encryption option on Info-ZIP be used from the command line? The zip man page says: -e –encrypt Encrypt the contents of the zip archive using a password which is entered on the terminal in response to a prompt (this will not be echoed; if standard error is not a tty, zip will exit with an error). The password prompt is repeated to save the user from typing errors. Is there a way to [...]