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gzip    
{GNU} compression utility. Gzip reduces
the size of the named files using {Lempel-Ziv} {LZ77
compression}. Whenever possible, each file is replaced by one
with the {filename extension} ".gz". Compressed files can be
restored to their original form using gzip -d or gunzip or
zcat.

The Unix "{compress}" utility is patented (by two separate
patents, in fact) and is thus shunned by the GNU Project since
it is not {free software}. They have therefore chosen gzip,
which is free of any known {software patents} and which tends
to compress better anyway. All compressed files in the {GNU}
{anonymous FTP} area (gnu.org/pub/gnu) are in gzip
format and their names end in ".gz" (as opposed to
"compress"-compressed files, which end in ".Z").

Gzip can uncompress "compress"-compressed files and "pack"
files (which end in ".z"). The decompression algorithms are
not patented, only compression is.

The gzip program is available from any {GNU archive site} in
{shar}, {tar}, or gzipped tar format (for those who already
have a prior version of gzip and want faster data
transmission). It works on virtually every {Unix} system,
{MS-DOS}, {OS/2} and {VMS}.


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英文字典中文字典相关资料:


  • What can be used to gzip in Windows? - Super User
    By the way, gzip generally have lower compression rations than rar and 7z (albeit it de compresses much faster), and it can only compress single files - generally tarballs when archiving (such as myfolder tar gz and it's generally suited for servers where you don't want to spend even a tiny bit of extra CPU if not necessary For archiving I recommend 7z, it has a very good LZMA algorithm And
  • What is the maximum compression ratio of gzip? - Super User
    And 42 zip, besides not being gzip, requires recursive decompression, which is not a fair comparison The compression ratio of the first layer is still within normal parameters
  • How to gzip multiple files into one gz file? - Super User
    You'll want to use tar, like so: tar -czvf file tar gz cvd* txt tar puts the files together, while gzip then performs the compression Quoth the gzip manpage: If you wish to create a single archive file with multiple members so that members can later be extracted independently, use an archiver such as tar or zip GNU tar supports the -z option to invoke gzip transparently gzip is designed as
  • Unexpected end of file. Gzip compressed file - Super User
    gzip: the_name_of_the_file gz: unexpected end of file The same problem happens when I try to extract the file using the GUI tool in Ubuntu or MacOSX, Any ideas?
  • When using gzip --decompress, the result is gzip: MYFILE. zip . . .
    You may be using the wrong tool gzip is file compressor decompressor for files that generally have the file extension gz and cannot extract files from a file like colorbox zip On linux you would use zip and unzip to add and extract files in a zip file Maybe gnuwin32 has the same zip unzip programs?
  • compression - Pros and cons of bzip vs gzip? - Super User
    I've known gzip for years, recently I saw bzip being used at work Are they basically equivalent, or are there significant pros and cons to one of them over the other?
  • gzip without tar? Why are they used together? - Super User
    Gzip Bzip2 are stream compressors They compress a stream of data into something smaller They could be used on individual files, but not on groups of files on their own Tar on the other hand has the ability to turn a list of files, with paths, permissions and ownership information, into a single continuous stream - and vice versa That's why, to archive files (and if one needs compression
  • How to GZIP all the files or a list of files from some path?
    21 gzip will always compress each file into a single gz file when given a list of files on its command line For example $ gzip -r log 2011 to recursively walk the log 2011 directory and compress all files it finds, or $ gzip log 2011 * to compress only the files in the log 2011 directory without descending into subdirectories
  • linux - Why does attempting to extract a tar. gz file returns, “This . . .
    The c option for gzip will tell gzip to decompress to the standard output stream The - at the end of the tar command means “use standard input ” So coupled with the the -c in gzip, the pipe will then take the standard output stream piped to it from gzip and connect that to standard input in tar
  • unix - How can I get the uncompressed size of gzip file without . . .
    To answer the question title: How can I get the uncompressed size of gzip file without actually decompressing it? As you obviously know, the option -l (--list) is usually showing the uncompressed size What it shows is not calculated from the data, but was stored in the header as part of the compressed file In your case, the -l option does not work for some reason But it's not possible to





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