05-22-2018
Hi,
Special characters are getting printed when i use the tr command
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LEARN ABOUT LINUX
pppdump
PPPDUMP(8) System Manager's Manual PPPDUMP(8)
NAME
pppdump - convert PPP record file to readable format
SYNOPSIS
pppdump [ -h | -p [ -d ]] [ -r ] [ -m mru ] [ file ... ]
DESCRIPTION
The pppdump utility converts the files written using the record option of pppd into a human-readable format. If one or more filenames are
specified, pppdump will read each in turn; otherwise it will read its standard input. In each case the result is written to standard out-
put.
The options are as follows:
-h Prints the bytes sent and received in hexadecimal. If neither this option nor the -p option is specified, the bytes are printed as
the characters themselves, with non-printing and non-ASCII characters printed as escape sequences.
-p Collects the bytes sent and received into PPP packets, interpreting the async HDLC framing and escape characters and checking the
FCS (frame check sequence) of each packet. The packets are printed as hex values and as characters (non-printable characters are
printed as `.').
-d With the -p option, this option causes pppdump to decompress packets which have been compressed with the BSD-Compress or Deflate
methods.
-r Reverses the direction indicators, so that `sent' is printed for bytes or packets received, and `rcvd' is printed for bytes or pack-
ets sent.
-m mru Use mru as the MRU (maximum receive unit) for both directions of the link when checking for over-length PPP packets (with the -p
option).
SEE ALSO
pppd(8)
1 April 1999 PPPDUMP(8)