Posted by – September 22, 2011
How can I extract a tar.gz or .tgz file?
Files with extension tar.gz or .tgz are tar files compressed with gzip. On Unix extract them with:
gunzip < file.tar.gz | tar xvf –
gunzip < file.tgz | tar xvf –
Can gzip compress several files into a single archive?
Not directly. You can first create a tar file then compress it:
tar cvf – filenames | gzip > file.tar.gz
- UPX is a free, portable, extendable, high-performance executable packer for several different executable formats. It achieves an excellent compression ratio and offers very fast decompression. Your executables suffer no memory overhead or other drawbacks for most of the formats supported, because of in-place decompression.
- UPX is copyrighted software distributed under the terms of the GNU General Public License, with special exceptions granting the free usage for commercial programs as stated in the UPX License Agreement.
- UPX uses the NRV compression library for compression services. A compatible but somewhat less efficient OpenSource implementation is available through the UCL compression library.
- UPX aims to be Commercial Quality Freeware.