![]() Now, search the pattern professionals in both files: $ egrep professionals sample.txt sample-copy.txt Let’s understand this with an example.įirst, create a copy of the sample.txt file: $ cp sample.txt sample-copy.txt The egrep command accepts multiple files as an argument, which allows us to search for a particular pattern in multiple files. On most Linux systems the above setting is enabled by default using the following alias: $ alias egrep='egrep –color=auto'ģ. ![]() Also, we can easily identify that the word professionals is repeated two times. Here, we can see that the same output is more informative as compared to the previous one. For example, the below command will highlight the text professionals in red color: $ egrep -color=auto professionals sample.txt ![]() To achieve this, we can use the -color option of the egrep command. We can make the output more informative by highlighting the matched pattern. How to Highlight Matched Patterns in File Here, we can see that the command prints the line which contains the specified pattern. Let’s start with a simple pattern-matching example, where we can use the below command to search for a string professional in a sample.txt file: $ egrep professionals sample.txt Now let’s discuss a few common examples that can be used on a daily basis. Here, we can see that the text file is ready. Let’s create a sample text file with the following contents to use an example: $ cat sample.txt The syntax of the egrep command is as follows: $ egrep PATTERNS It works similarly to grep -E (grep Extended regex), but it mostly searches a particular file or even lines to line or prints the line in the given file. The egrep command in Linux is recognized by the family of the grep command, which is used for searching and matching a particular pattern in files. However, egrep is one of the most powerful and commonly used utilities for text processing in Linux, and we going to discuss some examples of the egrep command. Linux provides various text-filtering utilities such as awk, sed, cut, etc. Things become really challenging if the operating system doesn’t provide the right tools and here comes Linux to rescue you. Have you ever been frustrated because you are unable to find the required information in the logs? Extracting the required information from a large data set is a complex and time-consuming task. After following this guide, users will be able to perform text searching more efficiently in Linux. Brief: In this guide, we will discuss some of the practical examples of the egrep command.
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