NAME
peekfd - peek at file descriptors of running processes SYNOPSIS
peekfd [-8,eight-bit-clean] [-n,no-headers] [-c,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 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)