peekfd(1)
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 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
