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Full Discussion: UNIX command to check if file name ends with .tar OR if the file is a tar file
Top Forums UNIX for Dummies Questions & Answers UNIX command to check if file name ends with .tar OR if the file is a tar file Post 302935424 by Scott on Monday 16th of February 2015 01:42:30 PM
Old 02-16-2015
Hi.

The file command will tell you if it's a tar archive (as opposed to just telling you it has a (generally-meaningless) .tar file 'extension').

Code:
$ touch a b c && tar cf test.tar a b c
$ file test.tar
test: POSIX tar archive

$ mv test.tar test.blah
$ file test.blah
test: POSIX tar archive

$ echo "blah blah" > blah.tar
$ file blah.tar
blah.tar: ASCII text

 

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LEARN ABOUT XFREE86

shape_tar

SHAPE_TAR(1)						      General Commands Manual						      SHAPE_TAR(1)

NAME

       shape_tar - shapeTools RMS bundle up subsystem in a tar or shar archive

SYNOPSIS

	shape tar[VERSIONS=<version_selection_rule>] [ARCHIVE=<filename>]

       shape shar[VERSIONS=<version_selection_rule>] [ARCHIVE=<filename>]

DESCRIPTION

       Shape tar and shape shar create a tar or a shar archive containing all source components of the current node in the system tree. All source
       components listed in the COMPONENTS macro in the Makefile and the release identification file (VERSIONFILE) are	written  to  the  archive.
       Components of subsystems are not included in the archive file.

       The  VERSIONS  macro  may  be  set  to  specify a version selection rule to be active during archive file creation. Default is most_recent,
       selecting the most recent version of each component. See shape_stdrul(7) or the $(SHAPELIBPATH)/stdrules for other possible  settings.  You
       may also use self defined version selection rules as VERSIONS.

       ARCHIVE	is  the base name of the file where the output shall be written to. Default is $(SUBSYSTEMNAME). The output file gets the filename
       extension .tar (resp. .shar).  When ARCHIVE=- is given, data will be written to standard output.

SEE ALSO

       shape_RMS(1), shape_stdrul(7)

FILES

       $(SUBSYSTEMNAME).tar $(SUBSYSTEMNAME).shar

2.10.119															      SHAPE_TAR(1)
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