^ not working as intended

[tskinnar]

Hi, I'm pretty new at this so pardon me if i'm a bit clumsy.

I was in the the Variables and Expansions section in Bash Academy when this exercise came up. Can someone explain why I'm getting the "bad substitution" output?

$ greeting="hello world" $ echo "$greeting" hello world $ echo "${greetingˆ}." -bash: ${greetingˆ}.: bad substitution $

Thanks for your help.

[chigh]

What version of bash are you using?

[tskinnar]

$ echo $BASH_VERSION 3.2.57(1)-release

I see. Thanks.