小编luc*_*ian的帖子

我正在尝试从不断更新的文件中提取一些数据，并且我已经弄清楚如何使用 grep 过滤两个字符串。输出如下：

!    total energy              =   -9744.24963670 Ry
     convergence has been achieved in 188 iterations
!    total energy              =   -9744.30001681 Ry
     convergence has been achieved in 140 iterations
!    total energy              =   -9744.33953891 Ry
     convergence has been achieved in 155 iterations
!    total energy              =   -9744.36584201 Ry
     convergence has been achieved in 164 iterations
!    total energy              =   -9744.37925372 Ry
     convergence has been achieved in 154 iterations
!    total energy              =   -9744.39185493 Ry
     convergence has been achieved in 153 …