In Bash how to use `$A` instead of `a` in `'"a"'` without using `"\"$A\""`?
Jun 27, 3:17pm
In Bash, if you want to use the value of the variable $A inside single quotes ('...'), you need to break out of the single quotes to allow variable expansion. Single quotes prevent all expansions, so you cannot use $A directly inside '...'.
Solution
Use single quotes for the static parts and double quotes for the variable part, like this:
bash
'"'"$A"'"'
Explanation:
'"' closes the single quote, opens a double quote, and then closes it.
"$A" allows the variable $A to expand.
'"' reopens a single quote.
This effectively concatenates the parts: ' + "$A" + ', resulting in the value of $A being inserted between single quotes.
Example:
bash
A=hello
echo '"'"$A"'"' # Output: 'hello'
This avoids using "\"$A\"" while achieving the same result.
Jun 27, 3:17pm
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