Gzip unzip1/9/2024 ![]() z, -z, or _z (ignoring case) and which begins with the correct magic number with an uncompressed file without the original extension. Gunzip takes a list of files on its command line and replaces each file whose name ends with. If the original name saved in the compressed file is not suitable for its file system, a new name is constructed from the original one to make it legal. This is useful when the compressed file name was truncated or when the timestamp was not preserved after a file transfer.Ĭompressed files can be restored to their original form using gzip -d or gunzip or zcat. These are used when decompressing the file with the -N option. Names are not truncated on systems which do not have a limit on file name length.īy default, gzip keeps the original file name and timestamp in the compressed file. For example, if file names are limited to 14 characters, is compressed to. (A part is delimited by dots.) If the name consists of small parts only, the longest parts are truncated. gzip attempts to truncate only the parts of the file name longer than three characters. If the compressed file name is too long for its file system, gzip truncates it. In particular, it ignores symbolic links. gzip only attempt to compress regular files. (The default extension is -gz for VMS, z for MS-DOS, OS/2 FAT, Windows NT FAT and Atari.) If no files are specified, or if a file name is " -", the standard input is compressed to the standard output. ![]() gz, while keeping the same ownership modes, access, and modification times. Whenever possible, each file is replaced by one with the extension. Gzip reduces the size of the named files using Lempel- Ziv coding (LZ77).
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