2018年10月4日
grep and regular expression --- ^ . *
摘要： "^" : Start of Line anchor "." : Matches any single character except the newline character. " " : Matches the preceding character 0 or more times. App 阅读全文
posted @ 2018-10-04 10:47 wangchangruei 阅读(334) 评论(0) 推荐(0)