从bash中的for循环中回显变量名，而不是值？

Question

a=1
b=2
c=3

for db in $a $b $c; do
echo VARIABLE NAME
blah 
blah  
blah

I need this for a script I am writing. I have some Client names set at the top to database names for the varialble. I am running a ps -ef and a few other things, but I need it to echo out which client name it is on in the loop. So in example above, it would echo out "a", then its other commands, then on the second loop echo "b" .....etc

Answer 1

Use variable indirection:

for var in a b c ; do
    echo $var ${!var}
done