Question

I would like to set a variable in bash called test_var
Basically, I want echo test_var to output:

%let output="file_20120601.csv";

where 20120601 is a variable. I am trying to do this by using:

test_var='%let output="file_$1.csv";'
echo test_var

this doesn’t work because $1 is not interpreted as variable, but interpreted as literally $1

Does anybody know how I can modify this to get it to do what I want it to do?

Answer 1

It doesn’t work because of single quotes. They make everything literal.

$ var='123'
$ foo="\"%hi there file_$var\""

$ echo $foo
"%hi there file_123"