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  • Are you sure the problem isn't the assignment x2="\$"? Try x2="\\$" or x2='\$' if you want to preserve the literal value of the backslash Commented Dec 11, 2018 at 18:46
  • Yes, that's it....the x2="\\$" fixed the issue, thanks ! Commented Dec 11, 2018 at 18:58
  • Note that PWD is a variable that already contains the current working directory. Commented Dec 12, 2018 at 7:51