LINUX面试题：https://blog.csdn.net/ThinkWon/article/details/104588679?ops_request_misc=%257B%2522request%255Fid%2522%253A%2522162797414416780255217923%2522%252C%2522scm%2522%253A%252220140713.130102334.pc%255Fall.%2522%257D&request_id=162797414416780255217923&biz_id=0&utm_medium=distribute.pc_search_result.none-task-blog-2~all~first_rank_v2~rank_v29-5-104588679.first_rank_v2_pc_rank_v29&utm_term=linux%E4%BD%9C%E4%B8%BA%E4%BF%A1%E5%8F%B7%E9%9B%86%E4%B8%AD%E5%99%A8&spm=1018.2226.3001.4187
