The fprocopen function opens files below /proc/## whose name is
the string to by path and associates a stream with it. The
argument mode points to a string containing one of the following
r Open a file below /proc/## for reading even large buffers.
The stream is positioned at the beginning of the file.
Open a file below /proc/## for writing even large buffers.
The optional delimiter character can be one of the
follwoing ' ', ',', '.', and ':' where the default is the
comma ','. This allows to split very large input lines
into pieces at this delimiter and write each of them to
the opened file below /proc/##.
e The underlying file descriptor will be closed if you use
any of the `exec...' functions within your code.
The internal API allows the use of stdio functions to read and
write large buffers below /proc/##.
This page is part of the procps-ng (/proc filesystem utilities)
project. Information about the project can be found at
⟨https://gitlab.com/procps-ng/procps⟩. If you have a bug report
for this manual page, see
This page was obtained from the project's upstream Git repository
⟨https://gitlab.com/procps-ng/procps.git⟩ on 2023-06-23. (At
that time, the date of the most recent commit that was found in
the repository was 2023-06-13.) If you discover any rendering
problems in this HTML version of the page, or you believe there
is a better or more up-to-date source for the page, or you have
corrections or improvements to the information in this COLOPHON
(which is not part of the original manual page), send a mail to
Linux Manpage 16 January 2018 PROCIO(3)