tr [OPTION]... SET1 [SET2]


       Translate, squeeze, and/or delete characters from standard input, writ-
       ing to standard output.

       -c, -C, --complement
              first complement SET1

       -d, --delete
              delete characters in SET1, do not translate

       -s, --squeeze-repeats
              replace each input sequence of  a  repeated  character  that  is
              listed in SET1 with a single occurrence of that character

       -t, --truncate-set1
              first truncate SET1 to length of SET2

       --help display this help and exit

              output version information and exit

       SETs  are  specified  as  strings  of characters.  Most represent them-
       selves.  Interpreted sequences are:

       \NNN   character with octal value NNN (1 to 3 octal digits)

       \\     backslash

       \a     audible BEL

       \b     backspace

       \f     form feed

       \n     new line

       \r     return

       \t     horizontal tab

       \v     vertical tab

              all characters from CHAR1 to CHAR2 in ascending order

              in SET2, copies of CHAR until length of SET1

              all digits

              all printable characters, not including space

              all lower case letters

              all printable characters, including space

              all punctuation characters

              all horizontal or vertical whitespace

              all upper case letters

              all hexadecimal digits

              all characters which are equivalent to CHAR

       Translation occurs if -d is not given and both SET1  and  SET2  appear.
       -t  may  be  used only when translating.  SET2 is extended to length of
       SET1 by repeating its last character as necessary.   Excess  characters
       of  SET2  are  ignored.  Only [:lower:] and [:upper:] are guaranteed to
       expand in ascending order; used in SET2  while  translating,  they  may
       only  be used in pairs to specify case conversion.  -s uses SET1 if not
       translating nor deleting; else squeezing uses  SET2  and  occurs  after
       translation or deletion.


       Written by Jim Meyering.


       Report bugs to <>.


       Copyright (C) 2006 Free Software Foundation, Inc.
       This  is  free  software.   You may redistribute copies of it under the
       terms      of      the      GNU      General       Public       License
       <>.   There  is NO WARRANTY, to the
       extent permitted by law.


       The full documentation for tr is maintained as a  Texinfo  manual.   If
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