Linux Command tar, linux Command tar

Linux Command tar, linux Command tar

The tar command is a reliable method for backing up files in Unix/Linux systems. It can work in almost any environment and has the permission of all users.

Syntax:

Tar [main option + auxiliary option] file or directory

Main options:

C. Create a new archive file. (Package) x release the file from the archive file. (Unpacking) t the primary option for listing the archive content can only exist at the same time

Auxiliary options:

Zgzip format, which is generally the jbzip2 format for files suffixed with gz, generally, the FILE v with the suffix bz2 shows the command execution process. f use the archive name p to use the original attributes of the original FILE (this will not be used in seclusion). -- exclude FILE during compression, do not package files

Example:
Package all the files in the/etc directory into/tmp/etc.tar.

Tar-cvf/tmp/etc.tar/etc <= package only, do not compress! Tar-zcvf/tmp/etc.tar.gz/etc <= compressed by gzip tar-jcvf/tmp/etc.tar.bz2/etc <= compressed by bzip2 # Note, we use the File file name after parameter f. tar. # If the z parameter is added, .tar.gz or. tgz is used to represent the tar file ~ compressed by gzip ~ # If you add the j parameter, use .tar.bz2 as the file name ~ # When the preceding command is executed, a warning message is displayed: # "tar: Removing leading '/" from member names ", which is a special setting for absolute paths.

Check the files in the/tmp/etc.tar.gz File above.

Tar-ztvf/tmp/etc.tar.gz # Because gzip is used for compression, when you want to check the files in the tar file, # Add the z parameter! This is important!

Decompress the/tmp/etc.tar.gz file under/usr/local/src.

Cd/usr/local/srctar-zxvf/tmp/etc.tar.gz # by default, We can unbind the compressed file anywhere! In this example # first, I will change the working directory to the/usr/local/src directory, if/tmp/etc.tar.gz # is unlocked, the directory is stored in/usr/local/src/etc. If you enter/usr/local/src/etc #, you will find that, the file attributes in this directory may be different from/etc!

Under/tmp, I only want to unbind the etc/passwd in/tmp/etc.tar.gz.

Cd/tmptar-zxvf/tmp/etc.tar.gz etc/passwd # I can check the file name in the tarfile through tar-ztvf. If you only need one file, # You can issue it in this way! Notice! The root directory in etc.tar.gz/is removed!

Back up/home,/etc, but do not/home/dmtsai

tar --exclude /home/dmtsai -zcvf myfile.tar.gz /home/* /etc

Decompress the package to the specified directory.

tar -zxvf /home/images.tar.gz -C /specific