Thank you very much Jeff! It turns out I ran into https://bugs.openjdk.java.net/browse/JDK-8131329 on Windows. The example was also a mistake. Anyway, false alarm, thank you again! Regards, Bo On Wed, Aug 14, 2019 at 8:10 PM Jeff King <peff@xxxxxxxx> wrote: > > On Wed, Aug 14, 2019 at 07:50:47PM +0800, Bo Zhang wrote: > > > Today I noticed that on Windows Git Bash, the asterisk (*) is > > incorrectly expanded even when it’s in a quote or following a > > backslash (\). I’m wondering if this is the correct behaviour (which > > seems like to me NOT). > > > > Step to reproduce (in Windows git bash): > > > > zhb@zhb-PC MINGW64 ~/Desktop > > $ bash --version > > GNU bash, version 4.4.19(2)-release (x86_64-pc-msys) > > Copyright (C) 2016 Free Software Foundation, Inc. > > License GPLv3+: GNU GPL version 3 or later <http://gnu.org/licenses/gpl.html> > > > > This is free software; you are free to change and redistribute it. > > There is NO WARRANTY, to the extent permitted by law. > > > > zhb@zhb-PC MINGW64 ~/Desktop > > $ cat 1.sh > > echo $1 > > Your script doesn't quote "$1", so whatever you pass in will be subject > to wildcard expansion inside the shell running the script. > > Try this: > > $ cat bad.sh > echo $1 > $ cat good.sh > echo "$1" > > $ bash bad.sh '*' > bad.sh good.sh > > $ bash good.sh '*' > * > > > zhb@zhb-PC MINGW64 ~/Desktop > > $ bash 1.sh '*' > > $A 1.sh 1.txt > > So this is the case I showed above. > > > zhb@zhb-PC MINGW64 ~/Desktop > > $ bash 1.sh "*" > > $A 1.sh 1.txt > > And this is equivalent. The quotes suppress wildcard expansion in your > interactive shell, but the script itself does another round of > expansion. > > > zhb@zhb-PC MINGW64 ~/Desktop > > $ bash 1.sh \* > > 1.sh 1.txt > > And same here. > > -Peff
