On Fri, Apr 14, 2023 at 11:02:03PM -0400, Greg Wooledge wrote: > On Sat, Apr 15, 2023 at 09:44:03AM +0700, Max Nikulin wrote: > > As to [^c] vs. [!c], unfortunately the latter can not be always used as > > portable variant. It is treated as history expansion in the case of > > interactive bash session. > > Ugh. That abomination. I've had history expansion disabled for *years*.
You have to escape it with a backslash. Quoting with single quotes also helps, although I don't know whether that is portable itself. Yes, somewhat annoying, unless one's making use of it. Cheers -- t
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