tar backup
The utar command is used under Linux to compress and decompress files. The package that is typed out using the tar program is often called a tar package. The tar package file usually ends with .tar u Compressed and decompressed source files will not disappear u Archive And compression: 1. Reduce the occupied space 2. Group scattered files into a compressed package uu Linux unique compression format and command tool: u gzip---> .gz
bzip2---> .bz2
xz---> .xz
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Common options of tar tool
utar command format: tar option /path/compressed package name compressed file
u——Common options
uc creates a package file
uf specifies the name of the packaged file
uz calls the .gz compression tool -J calls the .xz compression tool -j calls the .bz2 compression tool
ut lists the contents of the packaged document
ux release packaged files
uC specifies the decompression path
uv show detailed information
Format of the tar tool
utar –cf /compressed directory/file... //Create a compressed file utar –tf compressed file.tar //View the contents of the compressed file utar -rf Compressed file name/directory/file name//Append files to the packaged file utar --delete File name -f Compressed file name//Delete the specified file from the compressed file utar -xf Compressed file name -C /directory//Unzip the file to the specified directory utar -czf Compressed file name.tar.gz The compressed directory or file/ /Call gzip compression format to compress utar -cJf compressed file name.tar.xz is compressed directory or file//call xz compression format compression
Note: 1. After decompression, the source compressed file will not be deleted
2. The decompression command format of the tar package is unified with tar -xf compressed file name