Wireless Army
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Compressing files
by admin
 at 2017-12-24 08:01:00.

 

Syntax Description Example(s)
gzip {filename} Gzip compress the size of the given files using Lempel-Ziv coding (LZ77). Whenever possible, each file is replaced by one with the extension .gz. gzip mydata.doc
gzip *.jpg
ls -l
bzip2 {filename} bzip2 compresses files using the Burrows-Wheeler block sorting text compression algorithm, and Huffman coding. Compression is generally considerably better than that achieved by bzip command (LZ77/LZ78-based compressors). Whenever possible, each file is replaced by one with the extension .bz2. bzip2 mydata.doc
bzip2 *.jpg
ls -l
zip {.zip-filename} {filename-to-compress} zip is a compression and file packaging utility for Unix/Linux. Each file is stored in single .zip {.zip-filename} file with the extension .zip. zip mydata.zip mydata.doc
zip data.zip *.doc
ls -l
tar -zcvf {.tgz-file} {files}
tar -jcvf {.tbz2-file} {files}
The GNU tar is archiving utility but it can be use to compressing large file(s). GNU tar supports both archive compressing through gzip and bzip2. If you have more than 2 files then it is recommended to use tar instead of gzip or bzip2.
-z: use gzip compress
-j: use bzip2 compress
tar -zcvf data.tgz *.doc
tar -zcvf pics.tar.gz *.jpg *.png
tar -jcvf data.tbz2 *.doc
ls -l