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 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.
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 <trent.waddington@gmail.com>