On 12/06/2016 06:52 AM, BartC wrote: > But those would be silly. But why?
> Some special syntax is known about: | < and > for example. % less so > (I've never, ever used it in live input AFAIK). Yup and why would you think the ? * special syntax is not known about or should be known about? Very strange that you would treat them so differently. By the way I use %% environment variable expansion all the time in Windows. In fact I most use it in file open dialog boxes or in the Run dialog. If I want to see my home folder in a hurry, I'll type Win-R and then put "%userprofile%" in the box and hit enter. Very convenient. For me it's faster to then to browse through explorer and pick folders. Also it should work regardless of locale, and even if folder names are localized. > This auto-expansion causes so many problems, places so many restrictions > on what can be done, that it doesn't make sense. Auto-expanding > parameters is such a big deal, that it should not be the default > behaviour; it needs something to tell the command processor to expand. Yet you seem to be unable to see that applications doing their own expansion can also cause problems and restrictions and even worse, there's not a darn thing you as a user can do about it. > > Then you don't get utterly ridiculous and dangerous behaviour such as > the cp example Paul Moore came up with (that trumps most of mine actually): It's potentially dangerous agreed. So are lots of commands like rm -rf / (which some shells will ask you about). If you understand a few basic rules of expansion, you can understand easily what happened or would happen. I'm not sure but I think many distros by default in the shell profiles alias cp="cp -i" and rm="rm -i" to help newbies. I know the root account has those aliases by default. I'm pretty sure I've disabled those aliases for my personal user account because they get in the way of a lot of my common operations. Again, I point out that these behaviors can be changed and altered by the user if he so desires. Right at the shell level. Instead of having to alter applications themselves that aren't too smart about things. -- https://mail.python.org/mailman/listinfo/python-list
