TR(1)                   COMMAND REFERENCE                   TR(1)



NAME
     tr - translate characters

SYNOPSIS
     tr [ -cds ] string1 string2 ] ]

DESCRIPTION
     Tr copies the standard input to the standard output with
     substitution or deletion of selected characters.  Input
     characters found in string1 are mapped into the
     corresponding characters of string2.  When string2 is short
     it is padded to the length of string1 by duplicating its
     last character.  Any combination of the options -cds may be
     used.

     In either string, the notation a-e means a range of
     characters from a to e in increasing ASCII order.  The
     backslash character (\) followed by one, two, or three octal
     digits stands for the character whose ASCII code is given by
     those digits.  A backslash (\) followed by any other
     character stands for that character.

OPTIONS
     -c Complements the set of characters in string1 with respect
        to the universe of characters whose ASCII codes are 01
        through 0377 octal.

     -d Deletes all input characters in string1.

     -s Squeezes all strings of repeated output characters that
        are in string2 to single characters.

EXAMPLES
     The following example creates a list of all the words in
     file1 one per line in file2, where a word is taken to be a
     maximal string of letters.  The second string is quoted to
     protect the backslash (\) from the Shell.  012 is the ASCII
     code for newline.

          tr -cs A-Za-z '\012' <file1 >file2

RETURN VALUE
     [NO_ERRS]      Command completed without error.

     [USAGE]        Incorrect command line syntax. Execution
                    terminated.

CAVEATS
     Will not handle ASCII NUL in string1 or string2; always
     deletes NUL from input.





Printed 4/6/89                                                  1

TR(1)                   COMMAND REFERENCE                   TR(1)



     Characters in a string that do not appear to be a legitimate
     range (a-e) will be interpreted literally.  For example, e-a
     will be interpreted as a string composed of the characters
     e, -,
     and a.

SEE ALSO
     ed(1), expand(1), and ascii(7).















































Printed 4/6/89                                                  2

%%index%%
na:192,77;
sy:269,215;
de:484,996;
op:1480,498;
ex:1978,434;
rv:2412,271;
ca:2683,198;3145,232;
se:3377,192;
%%index%%000000000142