Event Designators (found on man bash)

These commands help to save time on Linux based tests:

! # Start a history sub.
* # All the words but the zeroth. After the 1st command all the words
$ # The last word.

So if you add it all together:

!$ # The last word of the previous command.
!* # All the words of the previous command except the first.
!! # The previous command.

Examples

kubectl apply -f my-pod.yaml 
vim !$ # vim my-pod.yaml

touch file1.txt file2.txt
rm !* # rm file1.txt file2.txt

kubectl get pods
!! -n kube-system # kbuectl get pods -n kube-system

202506210844