tag 21065 notabug thanks On 07/15/2015 07:25 AM, Rickard Norlander wrote: > touch version 8.23 > > Command: > $ touch -- '-' > Happens: > Returns successfully, but no file is created (if file exists, timestamp is > not updated)
Like many other tools, '-' is special-cased in touch to mean operation on stdin: $ touch --help | grep -A1 ' - ' A FILE argument string of - is handled specially and causes touch to change the times of the file associated with standard output. So you successfully touched stdin (in your case, /dev/tty). If you want to create a file named '-', use 'touch ./-'. See also this FAQ: https://www.gnu.org/software/coreutils/faq/coreutils-faq.html#How-do-I-remove-files-that-start-with-a-dash_003f -- Eric Blake eblake redhat com +1-919-301-3266 Libvirt virtualization library http://libvirt.org
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