Create variable from string/nameonly parameter to extract data in bash?

Question

I want to save the variable name and its contents easily from my script.

Currently :-

LOGFILE=/root/log.txt
TEST=/file/path
echo \"TEST : ${TEST}\" &         


        

Answer 1

Yes, using indirect expansion:

echo "$1 : ${!1}"

Quoting from Bash reference manual:

The basic form of parameter expansion is ${parameter} [...] If the first character of parameter is an exclamation point (!), a level of variable indirection is introduced. Bash uses the value of the variable formed from the rest of parameter as the name of the variable; this variable is then expanded and that value is used in the rest of the substitution, rather than the value of parameter itself. This is known as indirect expansion