Query: peekfd
OS: centos
Section: 1
Links: centos man pages all man pages
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PEEKFD(1) User Commands PEEKFD(1)NAMEpeekfd - peek at file descriptors of running processesSYNOPSISpeekfd [-8,--eight-bit-clean] [-n,--no-headers] [-f,--follow] [-d,--duplicates-removed] [-V,--version] [-h,--help] pid [fd] [fd] ...DESCRIPTIONpeekfd attaches to a running process and intercepts all reads and writes to file descriptors. You can specify the desired file descriptor 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.ENVIRONMENTNone.DIAGNOSTICSThe 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.BUGSProbably lots. Don't be surprised if the process you are monitoring dies.AUTHORTrent Waddington <trent.waddington@gmail.com>SEE ALSOttysnoop(8) psmisc 2012-07-28 PEEKFD(1)