SHELL

combine strings bash

foo="Hello"
foo="${foo} World"
echo "${foo}"
> Hello World

concatenate strings bash

VAR1="Hello,"
VAR2=" World"
VAR3="$VAR1$VAR2"
echo "$VAR3"

bash concatenate string variables

foo="Hello"
foo="${foo} World"
echo "${foo}"
> Hello World

How to concatenate string variables in Bash

Bash also supports a += operator as shown in this code:

A="X Y"
A+=" Z"
echo "$A"
output

X Y Z

Concatenating Strings in Bash

Var_start=“https.//www.”
Var_end=“.com”
echo $Var_start$1$Var_end