Adding more text to a variable

Shell Programming and Scripting
1

Is there a more simple way to add text to a variable
I have

var="blue"

and like to add green
to get

echo $var
blue green

Here is how I do it.

var=$(echo "${var} green")

---------- Post updated at 13:23 ---------- Previous update was at 13:12 ----------

:o Uff

Not always easy to see the simple...
This works fine

var="${var} green"
2

in bash:

$ var+=" green"
$ echo $var
blue green
1 Like
3

Note that the braces aren't needed either unless what you want to add to the variable could be interpreted by the shell to be part of the variable name.

var=blue
echo "$var"
var="$var green"
echo "$var"
var="${var}red"
echo "$var"

produces

blue
blue green
blue greenred