These days, you can’t throw a USB stick without hitting something that’s running Linux. It might be a phone, an embedded device, or your TV. Either way, it’s running Linux, and somewhere along the ...

你是否遇到过需要在文件中查找一个特定的字符串或者样式，但是不知道从哪儿开始？那么,就请grep来帮你吧。 grep是每个Linux发行版都预装的一个强有力的文件模式搜索工具。无论何种原因，如果你的系统没有预装它的话，你可以很容易的通过系统的包管理器来 ...

Have a quick question that I think the powers of Ars can solve. I have an existing linux log parsing script that is working fine but I want to add new functionality to it. Given the following 2 log ...

awk、grep、sed是linux操作文本的三大利器，合称文本三剑客，也是必须掌握的linux命令之一。三者的功能都是处理文本，但侧重点各不相同，其中属awk功能最强大，但也最复杂。grep更适合单纯的查找或匹配文本，sed更适合编辑匹配到的文本，awk更适合格式化文本 ...

grep is a command-line utility for searching plain-text data sets for lines that match a regular expression. Created in the early days of Unix, it has become a cornerstone of text processing in Linux ...