How to call UNIX sort command on data in pipe
I am creating a C program and with it I am setting up a pipe between separately forked process for interprocess communication.
The first process has written the data I need into the pipe.
However, with the second process reading from the pipe, I am trying to exec the process to become the UNIX sort command. I want to somehow call sort on the data in the pipe.
How can I call sort on a pipe? On the commandline, I can sort by supplying the filename to sort as a commandline argument e.g. "sort -r MyFileToSort". I know that pipes are essentially considered files, but they are only described by their file descriptor, and as far as I know, sort won't know what to do with a fd.
Thanks for any help/feedback
Copyright License：
Author:「pleaver」,Reproduced under the CC 4.0 BY-SA copyright license with link to original source & disclaimer.
Link to：https://stackoverflow.com/questions/27809692/how-to-call-unix-sort-command-on-data-in-pipe
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