Assume I have some environment variable named TMP=VAR and a second environment variable VAR_A=RES.
Is there and way I can access VAR_A via the variable TMP, i.e., something like: ${${TMP}_A} in bash?
Thanks!
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1Variable indirection is available, but in a large number of cases, you'll be better off with an associative array. – tripleee Jul 12 '21 at 13:01
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There is a possibility to use reference variable – Jay jargot Jul 12 '21 at 13:03
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`VAR_A="hello" ; MY_TMP="VAR" ; declare -n ref="${MY_TMP}_A" ; printf "%s\n" "${ref}"` – Jay jargot Jul 12 '21 at 13:04