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Linux: tar Extract Files

How can I extract or uncompress a file from tar ball downloaded from the Internet under Linux using bash command prompt?
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List The Contents Of a tar.bz2 Tarball File

How do I list the contents of a tar.bz2 file under Linux or UNIX-linke operating systems using a shell prompt?
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UNIX / Linux Decompress tgz / tar.gz Files

Q. I've downloaded a file from internet in .tgz format. How do I decompress .tgz file under UNIX or Linux operating system using a shell prompt?
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Q. I'm using lighttpd under CentOS 5 and getting the following error:
...can't handle '$HTTP[url] =~ …' as you compiled without pcre support.

My question is What is pcre support, and how do I solve this problem?

A. Pcre is nothing but Perl-compatible regular expression library. PCRE has its own native API, but a set of "wrapper" functions that are based on
the POSIX API are also supplied in the library libpcreposix. You must compile lighttpd with pcre to support lighttpd regex style config option. pcre-devel package provides the development files (Headers, libraries for static linking, etc) for pcre. Install the following package and rebuild your lighttpd:
# yum install glib2-devel openssl-devel pcre-devel bzip2-devel gzip-devel

Now change directory to lighttpd source code and recompile Lighttpd with pcre option:
# make clean
# ./configure
# make
# make install

Now restart lighttpd and it should support pcre style config options.

List the contents of a tar or tar.gz file

Q. How do I list the contents of a tar or tar.gz file?

A. GNU/tar is an archiving program designed to store and extract files from an archive file known as a tarfile. You can create a tar file or compressed tar file tar. However sometime you need to list the contents of a tar or tar.gz file on screen before extracting the all files.

Task: List the contents of a tar file

Use the following command:
$ tar -tvf file.tar

Task: List the contents of a tar.gz file

Use the following command:
$ tar -ztvf file.tar.gz

Task: List the contents of a tar.bz2 file

Use the following command:
$ tar -jtvf file.tar.bz2

Where,

  • t: List the contents of an archive
  • v: Verbosely list files processed (display detailed information)
  • z: Filter the archive through gzip so that we can open compressed (decompress) .gz tar file
  • j: Filter archive through bzip2, use to decompress .bz2 files.
  • f filename: Use archive file called filename