I agree. In the "normal" shells, you need to use "export" instead of "set"!
Am 28. September 2021 19:32:02 MESZ schrieb Greg Wooledge <g...@wooledge.org>: >On Tue, Sep 28, 2021 at 08:19:26AM -0700, pe...@easthope.ca wrote: >> > CONCLUSIONS >> > >> > Audio messages can be interpreted. Eg., >> > set AUDIODEV=plughw:CARD=ICH5,DEV=0; play m94.WAV >> >> Hasty reply. In further use, didn't always work. I removed the PCI >> sound card, removed the plastic cover from the sockets on the system >> board and connected speakers. Subsequently commands such as this >> always work. >> >> set AUDIODEV=plughw:CARD=ICH5,DEV=0 ; play a42.WAV > >Are you in csh/tcsh? If you're in a more "normal" shell (bash or zsh), >that set command doesn't do anything useful. Certainly nothing that >would affect the play command. > >Even if you're in (t)csh, my understanding is that "set" sets shell >variables, and you need "setenv" to set environment variables (which >could conceivably affect the play command). So, even in (t)csh, I >don't see how your set command is supposed to work. > >Other shells... rc? fish? I don't know these. I have no idea what >the set command does in them. >