### Test stdin goes to first command only ("-" as argument)
Academic tradition requires you to cite works you base your article on.
When using programs that use GNU Parallel to process data for publication please cite:

  O. Tange (2011): GNU Parallel - The Command-Line Power Tool,
  ;login: The USENIX Magazine, February 2011:42-47.

This helps funding further development; and it won't cost you a cent.
If you pay 10000 EUR you should feel free to use GNU Parallel without citing.

To silence this citation notice run 'parallel --bibtex' once or use '--no-notice'.

cat -
via first cat
cat -
via pseudotty
### Test stdin goes to first command only ("cat" as argument)
Academic tradition requires you to cite works you base your article on.
When using programs that use GNU Parallel to process data for publication please cite:

  O. Tange (2011): GNU Parallel - The Command-Line Power Tool,
  ;login: The USENIX Magazine, February 2011:42-47.

This helps funding further development; and it won't cost you a cent.
If you pay 10000 EUR you should feel free to use GNU Parallel without citing.

To silence this citation notice run 'parallel --bibtex' once or use '--no-notice'.

echo a
a
cat
via pseudotty