2018年4月15日
sed
摘要： Syntax: Example:Consider the below text file as an input. Sample Commands Output : Here the “s” specifies the substitution operation. The “/” are deli 阅读全文
posted @ 2018-04-15 16:51 anyu686 阅读(232) 评论(0) 推荐(0)
regular expression
摘要： 0) it is different from globbing e.g grep 'a*' b* // b* is globbing , indidcates any files start with letter b, a* is reg expression 1) use single quo 阅读全文
posted @ 2018-04-15 05:30 anyu686 阅读(219) 评论(0) 推荐(0)