Re: very simple off-topic question regarding command line viewing of postscript files on macOS

[Jean Abou Samra]

> Le 3 août 2022 à 01:24, Kenneth Wolcott <kennethwolcott@gmail.com> a écrit :
> 
> Hi;
> 
>  I'm trying to simplify my workflow. I think I want to generate
> postscript files instead of pdf files when using Lilypond.  I already
> know how to do that.  But what I need to know is, on a Mac, how to
> display the postscript file from the command line.  I used to do this
> all the time a long time ago when I used UNIX and Linux, but homebrew
> gs doesn't display the postscript.  I do not want to use preview.
> 
>  This used to be a TRIVIAL thing to do when I was younger, but now I
> am old and my brain just isn't what it used to be.
> 
>  I've looked at several man pages and/or info and/or help (lastly
> /opt/homebrew/Cellar/ghostscript/9.56.1_1/share/doc/ghostscript/9.56.1/Use.htm)
> 
> Current attempt:
> 
> /opt/homebrew/Cellar/ghostscript/9.56.1_1/bin/gs -sDEVICE=display
> ../target/The_Swan.ps
> GPL Ghostscript 9.56.1 (2022-04-04)
> Copyright (C) 2022 Artifex Software, Inc.  All rights reserved.
> This software is supplied under the GNU AGPLv3 and comes with NO WARRANTY:
> see the file COPYING for details.
> zsh: segmentation fault
> /opt/homebrew/Cellar/ghostscript/9.56.1_1/bin/gs -sDEVICE=display
> 
> So, what flags should I be using just to display the postscript?


Personally, I’d just have done

ps2pdf file.ps
open file.pdf

I believe this is actually what some of the modern document viewers do if you 
ask them to open a PS file.

Bottom line: this may be an XY question. Why do you want to generate PostScript 
in the first place?

Best,
Jean