shell - How to concat variable and string in bash script

Question

How to concat variable and string in bash script ?

val1 = Variable1 + "any string "

eg :

val1 = $i + "-i-*"

where i = 24thMarch

I want echo val1 :

24thMarch-i-*

What is proper proper to get the solution ?

Answer 1

Strings are concatenated by default in the shell.

value="$variable"text"$other_variable"

It's generally considered good practice to wrap variable expansions in double quotes.

You can also do this:

value="${variable}text${other_variable}"

The curly braces are useful when dealing with a mixture of variable names and strings.

Note that there should be no spaces around the = in an assignment.