Question

unix/Linux

Create a tar command using the man command and the link referred to in To Practice and Explore: Text File Utilities #9.

Preliminaries

1. Use the man pages to learn more about tar
2. Review the links referred to in To Practice and Explore: Text File Utilities #9 to see examples of using tar command

Perform

Use tar "to stuff" three files and then "unstuff" them into a new directory. Include the -v option.

Task

1. ll to show the original 3 files
2. run the tar command to stuff three files
3. ll to show the 'tar archive'
4. run mkdir newdir to create a new directory to unstuff the 'tar archive'
5. mv the 'tar archive' to the new directory newdir
6. from newdir run the tar command to unstuff the three files into the newdir directory
7. ll the new directory newdir to show the extracted files

Answer 1

he Linux 'tar' stands for tape archive, is used to create Archive and extract the Archive files. tar command in Linux is one of the important command which provides archiving functionality in Linux. We can use Linux tar command to create compressed or uncompressed Archive files and also maintain and modify them..................

Syntax:

tar [options] [archive-file] [file or directory to be archived]

Options:
-c : Creates Archive
-x : Extract the archive
-f : creates archive with given filename
-t : displays or lists files in archived file
-u : archives and adds to an existing archive file
-v : Displays Verbose Information
-A : Concatenates the archive files
-z : zip, tells tar command that create tar file using gzip
-j : filter archive tar file using tbzip
-W : Verify a archive file
-r : update or add file or directory in already existed .tar file...............

Examples:
1. Creating an uncompressed tar Archive using option -cvf : This command creates a tar file called file.tar which is the Archive of all .c files in current directory.........................

$ tar cvf file.tar *.c

Output :

os2.c
os3.c
os4.c

2. Extracting files from Archive using option -xvf : This command extracts files from Archives.

$ tar xvf file.tar

Output :

os2.c
os3.c
os4.c

NAME
       tar - an archiving utility

SYNOPSIS
   Traditional usage
       tar {A|c|d|r|t|u|x}[GnSkUWOmpsMBiajJzZhPlRvwo] [ARG...]

   UNIX-style usage
       tar -A [OPTIONS] ARCHIVE ARCHIVE

       tar -c [-f ARCHIVE] [OPTIONS] [FILE...]

       tar -d [-f ARCHIVE] [OPTIONS] [FILE...]

       tar -t [-f ARCHIVE] [OPTIONS] [MEMBER...]

       tar -r [-f ARCHIVE] [OPTIONS] [FILE...]

       tar -u [-f ARCHIVE] [OPTIONS] [FILE...]

       tar -x [-f ARCHIVE] [OPTIONS] [MEMBER...]

   GNU-style usage
       tar {--catenate|--concatenate} [OPTIONS] ARCHIVE ARCHIVE

       tar --create [--file ARCHIVE] [OPTIONS] [FILE...]

       tar {--diff|--compare} [--file ARCHIVE] [OPTIONS] [FILE...]

       tar --delete [--file ARCHIVE] [OPTIONS] [MEMBER...]

       tar --append [-f ARCHIVE] [OPTIONS] [FILE...]

       tar --list [-f ARCHIVE] [OPTIONS] [MEMBER...]

       tar --test-label [--file ARCHIVE] [OPTIONS] [LABEL...]

       tar --update [--file ARCHIVE] [OPTIONS] [FILE...]

       tar --update [-f ARCHIVE] [OPTIONS] [FILE...]

       tar {--extract|--get} [-f ARCHIVE] [OPTIONS] [MEMBER...]

NOTE
       This  manpage  is  a short description of GNU tar.  For a detailed
       discussion, including examples and usage recommendations, refer to
       the  GNU  Tar  Manual  available  in  texinfo format.  If the info
       reader and the tar documentation are properly  installed  on  your
       system, the command

           info tar

       should give you access to the complete manual.

       You  can  also view the manual using the info mode in emacs(1), or
       find it in various formats online at

           

       If any discrepancies occur between this manpage and  the  GNU  Tar
       Manual, the later shall be considered the authoritative source.