Exec runs a command and returns its exit code:
Author(s): Tianlong Wang, Ying Li, Yushi Ding, Zhenwei Liu, Yunlong Hao, Jie Zheng, Chunsheng Zhuang, Wei Zhang
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From the creators of Edge: A weekly videogame industry newsletter with analysis from expert writers, guidance from professionals, and insight into what's on the horizon.。关于这个话题，heLLoword翻译官方下载提供了深入分析
Филолог заявил о массовой отмене обращения на «вы» с большой буквы09:36，这一点在Line官方版本下载中也有详细论述