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

You want to use Variable Indirection. Also, don't use the function keyword, it is not POSIX and also not necessary as long as you have () at the end of your function name.

LOGFILE=/root/log.txt

save()
{
    echo "$1 : ${!1}" >> ${LOGFILE}
}

TEST=/file/path

save TEST

Proof of Concept

$ TEST=foo; save(){ echo "$1 : ${!1}"; }; save TEST
TEST : foo