zsh
compinit:477: bad math expression: illegal character: \
rm: remove regular file '.zcompdump'? y
root@vaio:~# rm .zcompdump-vaio-5.1.1
rm: remove regular file '.zcompdump-vaio-5.1.1'? y
root@vaio:~# exit
compinit:477: bad math expression: illegal character: \
rm: remove regular file '.zcompdump'? y
root@vaio:~# rm .zcompdump-vaio-5.1.1
rm: remove regular file '.zcompdump-vaio-5.1.1'? y
root@vaio:~# exit