concatenate-strings.md

Concatenate Strings

Option 1

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

Option 2

We can also use += operator to concatenate strings

VAR1="Hello, "
VAR2="World!"
VAR1+="${VAR1}"
echo "${VAR1}"

Source: Linuxize