17 examples of using Grep command in Linux

This article will guide you on the basic syntax and usage of the #grep #command in #Linux. We also went through some command-line options to expand its usefulness. The easiest of the two #commands is to use grep's -w option. This will find only lines that contain your target word as a complete word. 

Run the command "grep -w hub" against your target file and you will only see lines that contain the word "hub" as a complete word.

1. grep searches one or more input #files for lines that match a given pattern and writes each matching line to standard output. 

2. If no files are specified, grep reads from the standard input, which is usually the output of another command.

wc command: Demonstrated with 5 examples on Ubuntu 20.04 LTS

This article will guide you on how to use the #wc #command in #Linux. Here you will learn the basics of wc command along with its command-line options and few practical examples. Now you can easily count number of lines, words, characters and bytes in your files and in the output from other commands. The wc command in #UNIX is a command line utility for printing newline, word and byte counts for files. It can return the number of lines in a file, the number of characters in a file and the number of words in a file. It can also be combine with pipes for general #counting operations. To use use WC command, you need to know the following: wc -l : Prints the number of lines in a file. wc -w : prints the number of words in a file. wc -c : Displays the count of bytes in a file. 1. A Basic Example of WC Command. 2. Count Number of Lines. 3. Display Number of Words. 4. Count Number of Bytes and Characters. 5. Display Length of Longest Line.

Steps to save a file in Linux command line

This article will guide you on how to use the #cat #command to display or create a new file on #Linux. To save a file, you must first be in Command mode. Press Esc to enter Command mode, and then type :wq to write and quit the file. The other, quicker option is to use the keyboard shortcut ZZ to write and quit.

Process to Find And Remove Files on Linux

This article will guide you on using find command to find and remove files on your Server.

The complete steps on how to add and create a Sudo User on CentOS Linux 8 sudoers

This article will guide you on how to add a new and existing user account to sudo in CentOS 8 by appending them to wheel group so that they can run admin commands.