GNU/Linux man pages
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GNU/Linux |
Debian 6.0.5(Squeeze) |
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peekfd(1) |
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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.
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-8 |
Do no post-processing on the bytes being read or written. | ||
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-n |
Do not display headers indicating the source of the bytes dumped. | ||
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-c |
Also dump the requested file descriptor activity in any new child processes that are created. | ||
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-d |
Remove duplicate read/writes from the output. If you’re looking at a tty with echo, you might want this. | ||
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-v |
Display a version string. | ||
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-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 occured 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)
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peekfd(1) | |