Show HN: Shell utility to encrypt a file into a self-decrypting script

Re:Show HN: Shell utility to encrypt a file into a self-decr... by jrcii on Friday April 22, 2016 @03:36PM (#11552026)

> without needing to worry about command line arguments. For example, people are generally satisfied with .tar.

I have to google the extract arguments for tar every single time I use it. What was it again, -xfv?

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Re:Show HN: Shell utility to encrypt a file into a self-decr... by ivanhoe on Friday April 22, 2016 @03:49PM (#11552103)

Sorry for offtopic, but I find it strange that so many people find it hard to remember, it's just: e(x)tract, be (v)erbose and use (f)ile. If it was gzipped add -z. If you're compressing the file use -c (for compress) instead of -x. To me it was one of the easier commands to memorize...

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Re:Show HN: Shell utility to encrypt a file into a self-decr... by jagger27 on Friday April 22, 2016 @06:29PM (#11552984)

A few extra tips for tar:

-xvf is sufficient even if the archive is compressed

The dash is optional as well. tar xvf archive.tar.gz works just fine.

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Re:Show HN: Shell utility to encrypt a file into a self-decr... by brbsix on Sunday April 24, 2016 @03:21AM (#11558882)

Right near the top of `tar --help`:

    tar -xf archive.tar  # Extract all files from archive.tar.

If you work with lots of different types of archives or have a hard time remembering the various tools and arguments, I recommend dtrx (Do The Right Extraction). Super simple and it ensures you don't accidentally dump a whole directory tree somewhere it shouldn't. Assuming you have pip and hg installed, you can install the latest version to your user site with the following command:

    pip2 install --user hg+http://www.brettcsmith.org/2007/dtrx/dtrx

Then all you have to remember is `dtrx ARCHIVE...`

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