problem with the tr command

[George Herson]

hi.  I can't seem to get the tr command to translate carriage returns to
line feeds. I first tried specifying these in octal (tr \15 \12) and
then, using \r and \n (shown below).  Neither works.  \r seems to be
interpreted by tr as "r" and \n, as "n", contrary to what tr's help text
specifies (shown below).

Is this behavior a bug?  

thanks,
George


# tr --help|more
Usage: tr [OPTION]... SET1 [SET2]
Translate, squeeze, and/or delete characters from standard input,
writing to standard output.
.
.
.
SETs are specified as strings of characters.  Most represent themselves.
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
. 
. 
.

# cp /tmp/junk.b2 /tmp/junk.b3
# cat /tmp/junk.b2 | tr \r \n >/tmp/junk.b3
# cmp -c /tmp/junk.b2 /tmp/junk.b3
/tmp/junk.b2 /tmp/junk.b3 differ: char 28, line 2 is 162 r 156 n

# cat /tmp/junk.b2             
#!/bin/bash
echo "hello world"
# cat /tmp/junk.b3 
#!/bin/bash
echo "hello wonld"

# tr --version
tr (GNU textutils) 2.0a
Written by Jim Meyering.

# uname -a
Linux geodollar.com 2.2.14-5.0 #1 Tue Mar 7 21:07:39 EST 2000 i686
unknown