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,--duplicates-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
              descriptor numbers.

ENVIRONMENT
       None.

DIAGNOSTICS
       The following diagnostics may be issued on stderr:

       Error attaching to pid ...
              An  unknown  error  occured  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 

SEE ALSO
       ttysnoop(8)



Linux                             APRIL 2007                         PEEKFD(1)