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 ...

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 ...

The grep command can search for and list Linux files based on strings you are looking for and add the context of surrounding text. The grep command can help you find Linux files containing the string ...

I am very new to c-shell and I've skimmed several tutorials but I cannot for the life of me figure out how to do this simple, simple task with csh. I am looking for entry points and/or subroutines and ...

Hey all,<br>I'm working on some scripts to grade assignments for a UNIX class at my college. basicly what I'm trying to do is grep the student's .bash_history to make sure the students used certian ...

Do you want to create a Shell script in your Linux system? This guide will take you through how to create a shell script using multiple text editors, how to add comments, and how to use Shell ...

If you don't love the shell you're using on your Linux system, change it! There are plenty, including bash, fish, ksh, tcsh, zsh. There are quite a few shells on Linux system and more that can be ...

This article is reprinted from the book A Practical Guide to Linux Commands, Editors, and Shell Programming 3rd edition, with permission of the author and publisher ...