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Full Discussion: Conundrum - Flexible way to strip extension
Top Forums Shell Programming and Scripting Conundrum - Flexible way to strip extension Post 302671809 by Spadez on Saturday 14th of July 2012 04:33:38 PM
Old 07-14-2012
Conundrum - Flexible way to strip extension
Hi,

First post here. I have something that may prove to be difficult.

I have the following files:

Code:
Example1.0.0.tar.gz
Example2.tar
Example3.zip
Example4.0.0.0.0.0.bzip2

I need to remove the file extensions and store as a variable so they look like this:

Code:
Example1.0.0
Example2
Example3
Example4.0.0.0.0.0

The way I see it, there are only two ways of doing it. First, is to check the name for certain terms, say ".tar",".gz",".zip" and then have it removed from the name. If this is the best way, is there an efficient and clean way to do this?

The second way I see, is that I get the name without the extension after I unzip it, then store as a variable. So, with my command: tar xzf $FILE_VAR, is there a way to grab the folder that is spat out?

Code:
$File_VAR = Example1.0.0.tar.gz
tar xzf $FILE_VAR 
<code to find out resulting folder name and store as variable>

Output = Example1.0.0

I would really appreciate any help and advice you can give,

Thanks,

James

---------- Post updated at 03:33 PM ---------- Previous update was at 03:26 PM ----------

Sorry, second post. The whole reason I want to do this is because I need to CD into the untarred directory without knowing what it is actually called.

Thing is because I cant get the name without the extension, I dont know the name of the folder that will be output from the untar operation, then I cant CD into it.

I dont want to specify the folder name that it will be untarred into because I have thousands of these to do.
Last edited by Scrutinizer; 07-14-2012 at 05:36 PM.. Reason: quote tags changed to code tags
 

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LEARN ABOUT SUSE

gpg-zip

GPG-ZIP(1)							 GNU Privacy Guard							GPG-ZIP(1)

NAME

       gpg-zip - Encrypt or sign files into an archive

SYNOPSIS

       gpg-zip [options] filename1 [ filename2, ... ] directory1 [ directory2, ... ]

DESCRIPTION

       gpg-zip encrypts or signs files into an archive.  It is an gpg-ized tar using the same format as used by PGP's PGP Zip.

OPTIONS

       gpg-zip understands these options:

       --encrypt

       -e     Encrypt data.  This option may be combined with --symmetric (for	output that may be decrypted via a secret key or a passphrase).

       --decrypt

       -d     Decrypt data.

       --symmetric

       -c     Encrypt  with  a	symmetric  cipher  using  a  passphrase.   The	default symmetric cipher used is CAST5, but may be chosen with the
	      --cipher-algo option to gpg.

       --sign

       -s     Make a signature.  See gpg.

       --recipient user

       -r user
	      Encrypt for user id user. See gpg.

       --local-user user

       -u user
	      Use user as the key to sign with.  See gpg.

       --list-archive
	      List the contents of the specified archive.

       --output file

       -o file
	      Write output to specified file file.

       --gpg gpgcmd
	      Use the specified command gpgcmd instead of gpg.

       --gpg-args args
	      Pass the specified options to gpg.

       --tar tarcmd
	      Use the specified command tarcmd instead of tar.

       --tar-args args
	      Pass the specified options to tar.

       --version
	      Print version of the program and exit.

       --help Display a brief help page and exit.

EXAMPLES

       Encrypt the contents of directory 'mydocs' for user Bob to file 'test1':

	 gpg-zip --encrypt --output test1 --gpg-args  -r Bob mydocs

       List the contents of archive 'test1':

	 gpg-zip --list-archive test1

DIAGNOSTICS

       The program returns 0 if everything was fine, 1 otherwise.

SEE ALSO

       gpg(1), tar(1),

       The full documentation for this tool is maintained as a Texinfo manual.	If GnuPG and the info program are properly installed at your site,
       the command

	 info gnupg

       should give you access to the complete manual including a menu structure and an index.

GnuPG 2.0.15							    2010-07-05								GPG-ZIP(1)
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