peekfd

PEEKFD(1)                        User Commands                       PEEKFD(1)

NAME
       peekfd - peek at file descriptors of running processes

SYNOPSIS
       peekfd [-8,--eight-bit-clean] [-n,--no-headers] [-f,--follow] [-d,--du-
       plicates-removed] [-V,--version] [-h,--help] pid [fd] [fd] ...

DESCRIPTION
       peekfd attaches to a running  process  and  intercepts  all  reads  and
       writes  to file descriptors.  You can specify the desired file descrip-
       tor numbers or dump all of them.

OPTIONS
       -8     Do no post-processing on the bytes being read or written.

       -n     Do not display  headers  indicating  the  source  of  the  bytes
              dumped.

       -c     Also  dump  the  requested  file  descriptor activity in any new
              child processes that are created.

       -d     Remove duplicate read/writes from the output.  If you're looking
              at a tty with echo, you might want this.

       -v     Display a version string.

       -h     Display a help message.

FILES
       /proc/*/fd
              Not used but useful for the user to look at to get good file de-
              scriptor numbers.

ENVIRONMENT
       None.

DIAGNOSTICS
       The following diagnostics may be issued on stderr:

       Error attaching to pid ...
              An unknown  error  occurred  while  attempted  to  attach  to  a
              process..  you may need to be root.

BUGS
       Probably  lots.   Don't  be surprised if the process you are monitoring
       dies.

AUTHOR
       Trent Waddington <trent.waddington@gmail.com>

SEE ALSO
       ttysnoop(8)

psmisc                            2012-07-28                         PEEKFD(1)