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Use parameter expansion over a parameter expansion in bash.


 
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# 8  
Old 01-28-2020
It's interesting that on "zsh" it works
Use parameter expansion over a parameter expansion in bash.-zshpng
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# 9  
Old 01-28-2020
Really interesting. By definition it is a variable modifier that means the LHS must be a variable. Nesting can only be attempted on the RHS that is a string.
Apparently in zsh the LHS can be a string that means it is a full functional operator.
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