(no subject)

It's probably an alias in, for example, your .bashrc file:

$ cat ~/.bashrc

    # .bashrc

    # User specific aliases and functions
    alias rm='rm -i'
    alias mv='mv -i'
    alias cp='cp -i'
    alias s='cd ..'
    alias d='ls'
    alias p='cd -'

just remove the offending line

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