Linux command file archiving, compression, decompression-tar, gzip, gunzip, bzip2, bunzip2, zip

Tar: create an archive file [Syntax] tar [option] tarfilefilename [command description] the file name must be followed by the-f parameter and

Tar

[Syntax] tar [option] tarfile filename

[Command description]

The file name must be followed by the-f parameter and used as the last parameter;

[Parameter description]

-C. create a new archive file;

-F specifies the file name;

-R: append an object to an archive object;

-X extract files from archive files;

-V and-vv display progress information;

-T list the information of the archive file (not extracted );

-C specifies the directory extracted from the file;

-A: merge multiple tar files;

-- Print the total number of archive bytes after the totals archive is completed;

-- Delete: deletes a specified object from an archive object;

-- Exclude: exclude excludes files of the specified style during archiving;

-J. use the bunzip2 format to compress the archive file;

-When z generates an archive file, the gzip format is used for compression;

-- Lzma uses lzma format to compress archive files;

-A automatically compresses an archive file based on its extension when generating it;

 

[General usage]

The name is all.tar.

$ Tar-cvf all.tar *. text;

#Add file B .doc

$ Tar-rvf all.tar B .doc;

# List content in an archive object

$ Tar-tvf all.tar;

# Extract all files in the archive file

$ Tar-xvf all.tar;

$ Tar-xvf all.tar-C/opt/app/tool_dir;

# Extract a specified file from an archive file

$ Tar-xvf all.tar file_one file_two

# Merge two tar files

$ Tar-Af file_one.tar file_two.tar

# Deleting a specified object

$ Tar-f all.tar -- delete file_one file_two

# Exclude log files during Archiving

$ Tar-cf all.tar * -- exclude "*. log"

Gzip/gunzip for compression/decompression

[Syntax]

Gzip [options] file;

Gunzip [options] file;

[Command description]

Gzip can only compress a single file. if multiple files are specified, multiple individual compressed files are generated;

Gzip will delete the source file after generating the compressed file !!!!

After unzipping, gunzip deletes the source file !!!

[Parameter description]

-L, -- list lists the attributes of the compressed file;

-- Fast specifies the minimum compression ratio;

-- Best specifies the maximum compression ratio;

-N specifies the compression ratio (n is a number and 1 <= n <= 9 );

-V displays the progress information;

Bzip2/bunzip2 for compression/decompression

[Syntax]

Bzip2 file;

Bunzip2 file;

[Command description]

Bzip2 can usually generate files with a higher compression ratio than gzip. by default, bzip2 will delete the source files. you can use the-k parameter to retain the source files;

[Parameter description]

-K: keep the source file;

-N specifies the compression ratio (n is a number and 1 <= n <= 9 );

Zip/unzip for compression/decompression

[Syntax] zip [options] file dirs

[Command description]

After zip compression/decompression, the source files are not deleted;

[Parameter description]

-R recursion; used to compress directories;

-L list the compressed file content;

-D. delete the specified file from the compressed file;

-U: updates the content of the compressed file;

[General usage]

# Compressing files

$ Zip all.zip file;

$ Zip all.zip file_one file_two;

$ Zip-r all.zip dir_name;

# Update a compressed file

$ Zip all.zip-u log. text

# Delete the specified content

$ Zip-d all.zip log. text;

# Decompress the file

$ Unzip all.zip;

# List compressed file content

$ Unzip-l all.zip;