首页用grep Print all lines containing an uppercase letter, followed by four lowercase letters, a comma, a , and one uppercase letter.

用grep Print all lines containing an uppercase letter, followed by four lowercase letters, a comma, a , and one uppercase letter.

时间: 2024-05-28 17:14:56 浏览: 48

pp.rar_exec wait_fork and exec Shell_grep_open_unix pipe

Unix课程作业。使用fork(), exec(), dup2(), pipe() ，open()系统调用完成与下列shell命令等价的功能。 grep –v usr < /etc/passwd | wc –l > result.txt

Sure, you can use the following command to grep for the specified pattern: grep -E '[A-Z][a-z]{4},[a-z],[A-Z]' <filename> This will print all lines in <filename> that contain an uppercase letter, followed by four lowercase letters, a comma, a lowercase letter, and finally an uppercase letter.

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