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Top Forums Shell Programming and Scripting How to tar files inside a script? Post 302680793 by Corona688 on Thursday 2nd of August 2012 10:26:32 AM
Old 08-02-2012
Running tar 99,000 times to archive 99,000 files is painful to watch. Also see Useless Use of Cat and Useless Use of Backticks, which may cause your program to actually fail when there's large numbers of files.

Here, use this. It will run tar the minimum number of times actually needed.

Code:
xargs tar -rcf /path/to/file.tar < /tmp/test

This User Gave Thanks to Corona688 For This Post:
 

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ARCHIVE_WRITE_FORMAT(3) 				   BSD Library Functions Manual 				   ARCHIVE_WRITE_FORMAT(3)

NAME
archive_write_set_format_cpio, archive_write_set_format_pax, archive_write_set_format_pax_restricted, archive_write_set_format_shar, archive_write_set_format_shar_dump, archive_write_set_format_ustar -- functions for creating archives LIBRARY
Streaming Archive Library (libarchive, -larchive) SYNOPSIS
#include <archive.h> int archive_write_set_format_cpio(struct archive *); int archive_write_set_format_pax(struct archive *); int archive_write_set_format_pax_restricted(struct archive *); int archive_write_set_format_shar(struct archive *); int archive_write_set_format_shar_dump(struct archive *); int archive_write_set_format_ustar(struct archive *); DESCRIPTION
These functions set the format that will be used for the archive. The library can write POSIX octet-oriented cpio format archives, POSIX-standard ``pax interchange'' format archives, traditional ``shar'' ar- chives, enhanced ``dump'' shar archives that store a variety of file attributes and handle binary files, and POSIX-standard ``ustar'' ar- chives. The pax interchange format is a backwards-compatible tar format that adds key/value attributes to each entry and supports arbitrary filenames, linknames, uids, sizes, etc. ``Restricted pax interchange format'' is the library default; this is the same as pax format, but suppresses the pax extended header for most normal files. In most cases, this will result in ordinary ustar archives. RETURN VALUES
These functions return ARCHIVE_OK on success, or ARCHIVE_FATAL. ERRORS
Detailed error codes and textual descriptions are available from the archive_errno() and archive_error_string() functions. SEE ALSO
tar(1), libarchive(3), archive_write(3), archive_write_set_options(3), cpio(5), mtree(5), tar(5) BSD
February 2, 2012 BSD
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