set a variable and detect error status... Post: 302432009

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Top Forums Shell Programming and Scripting set a variable and detect error status... Post 302432009 by chebarbudo on Wednesday 23rd of June 2010 12:52:56 PM

06-23-2010

Registered User

Thanks bartus11
Your script works indeed.
The thing is that I'm working with big files and I wanted to avoid using tar twice.
A simple tar -tzf can take up to 4 seconds. Files are processed one by one and your script would double the time necessary to complete all files.
If you find any other way to avoid that, it would be great.
Thanks anyway for your proposal.
Santiago

---------- Post updated at 18:52 ---------- Previous update was at 18:36 ----------

Actually, I need to invoke tar twice in my script and I wanted to avoid invoking it three times.
First time I get the md5sum, second time, I read the statistics from tar -t.
Then I insert those informations in a database.
So here is what I did:

Code:

file_md5=$(tar -xzOf "$1" 2>/dev/null | md5sum | cut -b-32)
(tar -tzvf "$1" 2>/dev/null || echo error) | while read -r file_mod file_owner dummy file_date file_time name; do
	query="UPDATE uploaded
	SET file_mod = '${file_mod:1}',
	file_owner = '${file_owner%%/*}',
	file_group = '${file_owner#*/}',
	file_time = '$file_date $file_time',
	file_md5 = '$file_md5',
	name = \"$name\",
	status = IF('$file_mod' == 'error', 3, status)
	WHERE id = $id"
done

Thx for your help

chebarbudo

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dist::zilla::app::command::build

Dist::Zilla::App::Command::build(3pm)			User Contributed Perl Documentation		     Dist::Zilla::App::Command::build(3pm)

NAME

       Dist::Zilla::App::Command::build - build your dist

VERSION

       version 4.300020

SYNOPSIS

	 dzil build [ --trial ] [ --tgz | --no-tgz ] [ --in /path/to/build/dir ]

DESCRIPTION

       This command is a very thin layer over the Dist::Zilla "build" method, which does all the things required to build your distribution.  By
       default, it will also archive your distribution and leave you with a complete, ready-to-release distribution tarball.

EXAMPLE

	 $ dzil build
	 $ dzil build --no-tgz
	 $ dzil build --in /path/to/build/dir

OPTIONS

   --trial
       This will build a trial distribution.  Among other things, it will generally mean that the built tarball's basename ends in -TRIAL.

   --tgz | --no-tgz
       Builds a .tar.gz in your project directory after building the distribution.

       --tgz behaviour is by default, use --no-tgz to disable building an archive.

   --in
       Specifies the directory into which the distribution should be built.  If necessary, the directory will be created.  An archive will not be
       created.

AUTHOR

       Ricardo SIGNES <rjbs@cpan.org>

COPYRIGHT AND LICENSE

       This software is copyright (c) 2012 by Ricardo SIGNES.

       This is free software; you can redistribute it and/or modify it under the same terms as the Perl 5 programming language system itself.

perl v5.14.2							    2012-06-21				     Dist::Zilla::App::Command::build(3pm)

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