[Bug 3660] Prevent disastrous unintended local copying

[bugzilla-daemon at mindrot.org]

https://bugzilla.mindrot.org/show_bug.cgi?id=3660

Jim Knoble <jmknoble at pobox.com> changed:

           What    |Removed                     |Added
----------------------------------------------------------------------------
                 CC|                            |jmknoble at pobox.com

--- Comment #1 from Jim Knoble <jmknoble at pobox.com> ---
In your $HOME/.profile or $HOME/.bashrc add the following function:

scp() {
    case "$*" in
        *:*|*-h|'')
            command scp ${1:+"$@"}
            ;;
        *)
            echo "scp: error: Use cp(1) to copy files locally" >&2
            return 1
            ;;
    esac
}

(Warning: untested).

That should put a safety on your footgun without modifying the scp
binary, *and* it will work on just about any version of scp.

If you need a fancier footgun safety, consider a Python script that
wraps the scp command and appears earlier on $PATH.

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