Commands by logikal (1)

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Terminal - Show directories in the PATH, one per line with sed and bash3.X `here string'

Prettify XML in pipeline
xmllint2 comes with GNU libxml2 library. (based on: http://vim.wikia.com/wiki/Format_your_xml_document_using_xmllint)

Make a thumbnail image of first page of a PDF.
convert is included in ImageMagick. Don't forget the [X] (where X is the page number). [0] is the first page of the PDF.

Find the package that installed a command

Create a tar of directory structure only

Which processes are listening on a specific port (e.g. port 80)
swap out "80" for your port of interest. Can use port number or named ports e.g. "http"

Ping sweep without NMAP
Ping sweep without NMAP

pulsed terminal clock
hypnotizing pendulum

[vim] Clear trailing whitespace in file
% acts on every line in the file. \s matches spaces. \+ matches one or more occurrences of what's right behind it. Character '$' matches end-of-line.

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