Linux grep command

Here, we do not want to summarize the detailed usage of the grep command, but to record my usage experience.

 

Writing a test todayProgram"Segementation default" appears every time you run a library function, but you cannot enter this function during debugging.

Run grep-n-R "function name" LIBRARY PATH

It is found that "function name" is a global function pointer, which is assigned a value when a dynamic library is loaded dynamically. Therefore, a problem occurs when a dynamic library is loaded.