Error: A case analysis of/usr/include/stdio.h:permission denied

Error: A case analysis of/usr/include/stdio.h:permission denied

Code:

1. #include <stdio. h>
   
3. int main(){
   
5. printf ("Hello long size%d\n", sizeof(long));
   
6. }

It is easy to test whether it can be compiled by
Contrast

• Under root user compile normal pass
• In other user tests do not pass
  
  

  Click ( here) to collapse or open

  1. ~> GCC test.c
  2. Test.c:1:19:error:/usr/include/stdio.h:permission denied
  3. test.c:in function ' main ':
  4. Test.c:5: warning:incompatible Implicit declaration of built-in function ' printf '

Try to solve the problem

under root user, look at the properties of stdio.h

Click ( here ") collapse or open

1. ll/usr/include/stdio.h
2. -rw-r--r--1 root root 31144 2010-05-06 10:33/us R/include/stdio.h

has a readable property, but with Vim open, the display is a [new file], why? The
has the readable permission just can't see the file!

Add executable permissions to the document, chmod +x/usr/include/stdio.h
Problem

Add executable permissions to link, # find/usr/include/-type l-exec ls -l {} \;
Problem

Remove the executable permission of link, # find/usr/include/-type l-exec chmod-x  {} \;

Add executable permissions to the folder, # find/usr/include/-type d-exec chmod +x  {} \;
Problem Resolution

Analysis
I don't understand what it is related to open/usr/include/stdio.h and other folder executable permissions, because/usr/include and/usr/include/stdio.h are both feasible and users should be able to read stdio.h files.

This situation occurs during the migration process, in order to prevent unnecessary trouble, add the following command, Chmod-r 755/usr/include/

Error: A case analysis of/usr/include/stdio.h:permission denied