Abban az aláírásban gondolom az a poén, hogy nagyon nem látszik belőle, mi lesz a futás eredménye.
Más számrendszerben a bash is ismeri a konstansokat, bár szerintem nem is erre gondoltál:
Constants with a leading 0 are interpreted as octal numbers. A leading
0x or 0X denotes hexadecimal. Otherwise, numbers take the form
[base#]n, where the optional base is a decimal number between 2 and 64
representing the arithmetic base, and n is a number in that base. If
base# is omitted, then base 10 is used. When specifying n, the digits
greater< than 9 are represented by the lowercase letters, the uppercase
letters, @, and _, in that order. If base is less than or equal to 36,
lowercase and uppercase letters may be used interchangeably to repre‐
sent numbers between 10 and 35.
tr '[:lower:]' '[:upper:]' <<<locsemege
LOCSEMEGE