e-command-completions (C-x !) 104 possible-completions (M-?) 103 possible-filename-completions (C-x /) 104 possible -hostname -completions (C -x 4) 104 possible -username -completions (C-x ") 104 possible-variable-completions (C-x S) 104 prefix-meta ((C/) 105 previous-history (C-p)