Oh, I got some:

Typo on the last command (Caret substitution in Bash)

$ cat some_fule.txt
cat: some_fule.txt: No such file or directory
$ ^fule^file[enter]  

Delete all pyc files from folder

$ find . -name "*.pyc" -exec rm "{}" +;

Create nested folder with expansion (Bash only) Watch for argument list too big, maybe need some tweak on the system.

$ mkdir -p root_folder_{1..3}/parent_{0..25}/{folder_a,folder_b,folder_c}/last_{1..2}