问题集锦索引

Problem 1: when i run a program, it print out error message like”cannot open the shared library”

Problem 2: How to use gcc link options to compile a program?

Problem 3: when i install freeradius server, I just follow the guidline step by step, but after I finish installing, I come across a big problem of “cannot find rlm_sql_mysql.so library” when i try to start the server.

Problem 4: when accessing a file through apache httpd server in Fedora Linux, SELinux program may deny your access.

Problem 5: How to allow a user to access the mysql server remotely?

Problem 6: 怎样安装五笔输入法程序：fcitx-3.6(小企鹅输入法)?

Problem 7: 怎样获取一个网络接口的信息（IP地址，掩码，物理地址等等）？

Problem 8. Linux系统中怎样引导X Window窗口系统？

Problem 9. How to check the validality of an email address using c programing language?

Problem 10. How to make a program to be run as a service? 

Problem 11. How to set a password for a user and how to grant some permission to a specified user in mysql?

Problem 12. When I tried to start the mysql server on my linux platform, but failed with the following error message:

nohup: ignoring input and redirecting stderr to stdout

Starting mysqld daemon with databases from /usr/local/mysql/var/localhost.localdomain.pid.

091027 10:30:33 mysqld ended, what’s wrong with mysql configuration?

Problem 13 Give me an example to manipulate a terminal?

Problem 14 what’s the meaning of line discipline?

Problem 15. How to use file lock to achieve exclusive access?

Problem 16. What’s the difference between soft link and hard link file?

Problem 17. what’s the differences among real uid, effective uid, a saved uid, and a filesystem uid?

Problem 18. A common mistake in checking errno is to forget that any library or system call can modify it.

Problem 19. How to use the read() function safely?

Problem 20. How to use select(), pselect(), poll, ppoll() and epoll()?

Problem 21. how to use readv() and writev() in linux platform?

Problem 22. how to use mmap()?

Problem 23. How to realize thread-based asynchronous I/O?

Problem 24  some information about vfork() and atexit()?

Problem 25 how to check a null string or empty string in C?

Problem26 how to use access() function?

Problem27 How to install a new font in Linux?

Problem28:C语言中如何使用宏

Problem29 how to ignore an access violation exception in VC?

Problem30关于C和C++混合编程问题？

Problem31 some useful small programs to extract words from text?

Problem 32#progma interface and #progma implementation?

Problem 33 how to overrideoperator new and operator delete?

Problem 34 zero-sized array?

Problem 35 how to Registering a Control Handler Function in a console application in order to intercept CTRL+C event or other?

Problem 36gcc中格式化输出函数的研究

Problem 37怎样获取Windows各个指针?

Problem 38位操作or, and 和xor的用法？

Problem 39计算结构体中某个成员的偏移值？

Problem 40 Ubuntu解压缩的一些命令