Aureola crown, modified by an equally simple idea of the emanation of light from the head of a superior being, or by the meteorological phenomenon of a halo. The probability is that all later associations with the symbol refer back to an early astrological origin (compare Mithras), the person so glorified being identified with the sun and represented in the sun's image; so the aureole is the "Hvareno" of Mazdaism. From this early astrological use, the form of "glory" or "nimbus" has been adapted or inherited under new beliefs. A "mandorla" is a vesica piscis shaped aureola which surrounds the figures
Bad command or file name were damaged or had illegal filenames. Later, the wording of the error message was changed for clarity. Windows NT displays the following error message instead (where "foo" is replaced by the word causing error): Some early Unix shells produced the equally cryptic "foo: no such file or directory" for the same reasons. Most modern shells produce an error message similar to "foo: command not found". Bad command or file name "Bad command or file name" is a common and confusing error message in MS-DOS and some other operating systems. COMMAND.COM, the primary user interface of MS-DOS, produces this error message