whirm@ns34571:~$ sudo su
ns34571:/home/whirm# alias
alias cp='cp -i'
alias l='ls $LS_OPTIONS -lA'
alias ll='ls $LS_OPTIONS -l'
alias ls='ls $LS_OPTIONS'
alias mv='mv -i

. /etc/bash_completion'
alias rm='rm -i'
ns34571:/home/whirm# cd /tmp/
ns34571:/tmp# ls
arrr  blender_2.43-svn20070503edgy-1ubuntu3_i386.deb  logcheck.BM3504  temporal
ns34571:/tmp# mv arrr caca
mv: missing file operand
Try `mv --help' for more information.
uns34571:/tmp# unalias mv
ns34571:/tmp# mv arrr caca
ns34571:/tmp# mv -i caca arrr
ns34571:/tmp#