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ASCII(1)                    General Commands Manual                   ASCII(1)



NAME
       ascii, unicode - interpret ASCII, Unicode characters

SYNOPSIS
       ascii [ -8cnt ] [ -dox | -b n ] [ text ]

       unicode hexmin-hexmax

       unicode [ -t ] hex [ ...  ]

       unicode [ -n ] characters

       look hex /lib/unicode

DESCRIPTION
       Ascii  prints  the  ASCII  values  corresponding to characters and vice
       versa;  under  the  -8  option,  the  ISO  Latin-1  extensions   (codes
       0200-0377)  are included.  The values are interpreted in a settable nu‐
       meric base; -o specifies octal, -d decimal,  -x  hexadecimal  (the  de‐
       fault), and -bn base n.

       With  no  arguments,  ascii  prints a table of the character set in the
       specified base.  Characters of text are converted to their  ASCII  val‐
       ues, one per line. If, however, the first text argument is a valid num‐
       ber in the specified base, conversion goes the opposite  way.   Control
       characters are printed as two- or three-character mnemonics.  Other op‐
       tions are:

       -n     Force numeric output.

       -c     Force character output.

       -t     Convert from numbers to running text; do not  interpret  control
              characters or insert newlines.

       Unicode  is  similar; it converts between UTF and character values from
       the Unicode Standard (see utf(6)).  If given  a  range  of  hexadecimal
       numbers,  unicode  prints a table of the specified Unicode characters —
       their values and UTF representations.  Otherwise it translates from UTF
       to numeric value or vice versa, depending on the appearance of the sup‐
       plied text; the -n option forces numeric output to avoid ambiguity with
       numeric  characters.  If converting to UTF , the characters are printed
       one per line unless the -t flag is set, in which case the output  is  a
       single  string containing only the specified characters.  Unlike ascii,
       unicode treats no characters specially.

       The output of ascii and unicode may  be  unhelpful  if  the  characters
       printed are not available in the current font.

       The  file /lib/unicode contains a table of characters and descriptions,
       sorted in hexadecimal order, suitable for look(1) on the lower case hex
       values of characters.

EXAMPLES
       ascii -d
              Print the ASCII table base 10.

       unicode p
              Print the hex value of `p'.

       unicode 2200-22f1
              Print a table of miscellaneous mathematical symbols.

       look 00039 /lib/unicode
              See  the  start  of the Greek alphabet's encoding in the Unicode
              Standard.

FILES
       /lib/unicode
              table of characters and descriptions.

SOURCE
       /sys/src/cmd/ascii.c
       /sys/src/cmd/unicode.c

SEE ALSO
       look(1), tcs(1), utf(6), font(6)



                                                                      ASCII(1)