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NAME | SYNOPSIS | DESCRIPTION | OPTIONS | FILES | ENVIRONMENT | DIAGNOSTICS | BUGS | AUTHOR | SEE ALSO | COLOPHON |
PEEKFD(1) User Commands PEEKFD(1)
peekfd - peek at file descriptors of running processes
peekfd [-8,--eight-bit-clean] [-n,--no-headers] [-f,--follow]
[-d,--duplicates-removed] [-V,--version] [-h,--help] pid [fd] [fd]
...
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.
-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.
/proc/*/fd
Not used but useful for the user to look at to get good file
descriptor numbers.
None.
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.
Probably lots. Don't be surprised if the process you are monitoring
dies.
Trent Waddington ⟨trent.waddington@gmail.com⟩
ttysnoop(8)
This page is part of the psmisc (Small utilities that use the /proc
filesystem) project. Information about the project can be found at
⟨https://gitlab.com/psmisc/psmisc⟩. If you have a bug report for
this manual page, see ⟨https://gitlab.com/psmisc/psmisc/issues⟩.
This page was obtained from the project's upstream Git repository
⟨https://gitlab.com/psmisc/psmisc.git⟩ on 2017-07-05. If you discover
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COLOPHON (which is not part of the original manual page), send a mail
to man-pages@man7.org
psmisc 2012-07-28 PEEKFD(1)