已知执行“[student@localhost~] $ cat file ”的结果是:
This is chapter.
This is chapter123
This is oschapter1
则执行“[student@localhost~] $ grep chapter[0-9] * file”的结果是()
A.正确答案BThis is chapter.
This is chapter123
B.This is chapter123
This is oschapter1
C.This is chapter.
This is oschapter1
D.This is chapter.
This is chapter123
This is oschapter1