tr(1)                      DG/UX 4.30                       tr(1)



     NAME
          tr - translate characters

     SYNOPSIS
          tr [ -cds ] [ string1 [ string2 ] ]

     DESCRIPTION
          Tr copies the standard input to the standard output,
          substituting or deleting selected characters.  Input
          characters found in string1 are mapped into the
          corresponding characters of string2.  You can use any
          combination of these options:

          -c      Complements the set of characters in string1 with
                  the universe of characters whose ASCII codes are 001
                  through 377 octal.

          -d      Deletes all input characters in string1.

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

          The following abbreviation conventions introduce ranges of
          characters or repeated characters into the strings:

          [a-z]   Stands for the string of characters whose ASCII
                  codes run from character a to character z,
                  inclusive.

          [a*n]   Stands for n repetitions of a.  If the first digit
                  of n is 0, n is considered octal; otherwise, n is
                  taken to be decimal.  A zero or missing n is taken
                  to be huge; this facility is useful for padding
                  string2.

          Use the escape character \ as in the shell to remove special
          meaning from any character in a string.  In addition, \
          followed by one, two, or three octal digits stands for the
          character whose ASCII code is given by those digits.

     EXAMPLES
          $ cat infile

          aaaabbbccccccc

          $ tr -s "[a-z]" "[A-Z]" <infile > outfile

          $ cat outfile

          ABC
          $




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     tr(1)                      DG/UX 4.30                       tr(1)



          This example causes all lower case letters in the infile to
          be converted to capital letters in the outfile.  The -s
          switch causes repeated output characters to be "squeezed".

          $ cat infile2

          Mary Wadsmith 23 11/10
          Tim Simon 28 1/15
          Karen Adams 24 3/9

          $ tr -d "[0-9]/" <infile2 >outfile2

          Mary Wadsmith
          Tim Simon
          Karen Adams
          $

          This example causes all numeric values and slashes to be
          deleted from infile1.  All other values are left alone.  The
          output goes to outfile1.

          $ cat infile3

          Jim Wang - employee number 32465
          Grant Stanley - employee number 98757
          Cindy Eddy - employee number 76578
          Mark Hoopes - employee number 78657

          $ tr -cs "[0-9]" "[\012*]" <infile3 >outfile3

          $ cat outfile3

          32465
          98757
          76578
          78657
          $

          This example causes all values in the infile that are not in
          string1, [0-9], to be converted to newlines ( 12 is the
          ascii value for newline).  All of the newlines are
          "squeezed", and all values that are in string1 are left
          alone (because of the -c option).

          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 alphabetics.  The strings are quoted to
          protect the special characters from interpretation by the
          shell; 012 is the ASCII code for new-line.

          tr -cs "[A-Z][a-z]" "[\012*]" <file1 >file2




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     tr(1)                      DG/UX 4.30                       tr(1)



     SEE ALSO
          ed(1), sh(1).
          ascii(5) in the Programmer's Reference for the DG/UX System
          (Volume 1)

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















































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