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The error variable caused by '$' #7

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PosiHydr opened this issue Jul 25, 2022 · 0 comments

PosiHydr commented Jul 25, 2022 •

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When I was writing Makefile
all:
@echo '$/'
Its output is not $/, but a newline character

all:
@echo '$_'
Its output is the make path of my operating system.

So I'm guessing that make does the same thing as calling shell environment variables when dealing with symbols like $_, $a, $b.

This caused me to be unable to use $ in regular expressions in Makefile.

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