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 youre 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 pro cess.. you may need to be root. BUGS Probably lots. Dont be surprised if the process you are monitoring dies. AUTHOR Trent Waddington SEE ALSO ttysnoop(8) Linux APRIL 2007 PEEKFD(1)