The grep filter searches a file for a particular pattern of characters, and displays all lines that contain that pattern. The pattern that is searched in the file is referred to as the regular expression (grep stands for globally search for regular expression and print out). DESCRIPTION grep searches the named input FILEs (or standard input if no files are named, or if a single hyphen-minus (-) is given as file name) for lines containing a match to the given PATTERN. By default, grep prints the matching lines. No installation needed, start using the tool immediately. Small executable can be run from the network. Easy to temporarily install and then completely remove. What an amazingly powerful little piece of software! BareGrep is now at the top of my list of must-have utilities. Product Overview Command Line Use Regex Reference.
grep is a very powerful and useful tool used in Linux and Unix operating systems. It is mainly used to match and print specified text in given text files in different formats. grep also have subversions like egrep which will provide extended functionality like regular expressions. In this tutorial, we will learn how to download, install and use grep and egrep for Windows operating systems.
grep is a Unix or Linux tools provided as opensource. Hopefully, it is also provided for Windows operating systems and platform by GNU. We can download the grep setup file from the following page.
Or simply we can download from the following link directly. But keep in mind that when new versions have arrived following link will be absolute or old.
We will start the installation by clicking to the gre-2.5.4-setup.exe We can see that the current version of the grep we will install is 2.5.4.
This may require some Administrative privileges. So we will provide the Admin privileges by click Yes to the dialog box.
Below the Setup Start Screen of the GNU Grep
We will accept the license agreement by clicking I accept the agreement like below.
We will set the destination location to install grep where the default is C:Program FilesGnuWin32.
We will select the components we want to install. Full Installation will install both Binaries and Documentation otherwise we can select or deselect these components easily.
We will set the Start Menu Name for the GNU Grep like below.
Here are sme additional tasks like Creating Document Shortcuts in Start Menu Folder and Download Sources.
Now we can start the installation with the specified configuration. We will just click to the Install button like below.
As grep is a very tiny tool it will install quickly and we will see the following installation completed successfully screen.
As specified configuration the grep is installed to the C:Program FilesGnuWin32 under to the binary bin directory. In order call and use grep command from the MS-DOS or command line we need to add this path to the environment variables PATHvariable. We can also see the executable files named egrep, fgrep and grep in the following screen.
We set path different ways but the most practical one is using command line too setx like below.
Then we can check by opening a new command line or MS-DOS windows and run grep command like below.
We can see that grep command expects some option and file in order to work.
GREP Gen - Regex Tester/Debugger
grep command in Windows is very similar to the Linux version. But we may need some helpful information about the usage and options. We can print help information with the --help option like below.
Grep Tools
We can grep specified word or text just by providing the grep term and the file we want to grep. In this example grep term is ssh and the file we want to look is named config.txt. config.txt content is like below which is and ssh_config file from an Ubuntu box.
Grep Tool For Mac
We will run the following command