What is the difference between the various unistd.h under /usr/include in Linux ?
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by Marwan
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Published on 2010-06-01T09:46:14Z
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Under the /usr/include directory in Linux i entered the command: find -type f -name unistd.h which gave the following output:
./unistd.h ./linux/unistd.h ./asm-generic/unistd.h ./bits/unistd.h ./asm/unistd.h ./sys/unistd.h
my question is, what is the purpose of each unistd.h, since there is only one definiton of that file in the single unix specification ?
Thanks in advance.
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