Skip to content
  • Home
  • About
  • eBooks
  • Shop
  • Donate
  • Linux Online Courses
  • Subscribe to Newsletter
  • Linux Hosting
  • A-Z Linux Commands
  • Get Involved
    • Testimonials
    • Join TecMint
    • Submit Article Request
    • Suggest an Update
Tecmint: Linux Howtos, Tutorials & Guides
  • Linux Distro’s
    • Best Linux Distros
    • RedHat Distributions
    • Linux Distros for Beginners
    • Linux Server Distros
    • Debian Distributions
    • Ubuntu Distributions
    • Arch Linux Distros
    • Rolling Linux Distros
    • KDE Linux Distros
    • Secure Linux Distros
    • Linux Distros for Old PC
    • New Linux Distros
    • Linux Distros for Kids
    • Linux Distros for Windows Users
  • FAQ’s
  • Programming
    • Shell Scripting
    • Learn Python
    • Learn Awk
  • Linux Commands
  • Linux Tricks
  • Best Linux Tools
  • Certifications
    • RHCE Exam
    • RHCSA Exam
    • LFCE Exam
    • LFCS Exam
    • Ansible Exam
  • Guides
    • Hadoop Series
    • Docker Series
    • Postfix Mail
    • XenServer Series
    • RHEV Series
    • Clustering Series
    • LVM Series
    • RAID Series
    • KVM Series
    • iSCSI Series
    • Zentyal Series
    • Ansible Series
    • Django Series
    • Create GUI Apps
  • Monitoring Tools
    • Nagios
    • Zabbix
    • Cacti
    • Observium
    • Monitorix
    • Collectd
    • Collectl
    • MySQL Monitoring

Jalpan Trivedi

Working as Linux Administrator with 13+ years of experience on Linux and Open Source technologies.
Linux Grep Commands on Character Classes

11 Advanced Linux ‘Grep’ Commands on Character Classes and Bracket Expressions

4 Comments

Have you ever been into a situation where you need to search for a string, word or pattern inside a file? if yes, then the grep utility comes handy in such situation. grep is a command

Over 3,500,000+ Readers

Join TecMint on Facebook Follow TecMint on Twitter Join TecMint on LinkedIn Follow TecMint on Instagram Follow TecMint via RSS Feed Subscribe to TecMint Newsletter
A Beginners Guide To Learn Linux for Free [with Examples]
Red Hat RHCSA/RHCE 8 Certification Study Guide [eBooks]
Linux Foundation LFCS and LFCE Certification Study Guide [eBooks]

Learn Linux Commands and Tools

How to Download MP3 Tracks from a YouTube Video Using YouTube-DL

How to Start/Stop and Enable/Disable FirewallD and Iptables Firewall in Linux

Linux Fun – How to Create ASCII Text Banners in Terminal

10 Useful ‘locate’ Command Practical Examples for Linux Newbies

How to Block USB Storage Devices in Linux Servers

Teleconsole – Share Your Linux Terminal with Your Friends

Join TecMint Weekly Newsletter

If You Appreciate What We Do Here On TecMint, You Should Consider:

Support Us

Linux Server Monitoring Tools

How to Install Cacti with Cacti-Spine in Debian and Ubuntu

Install Cacti (Network Monitoring) on RHEL/CentOS 8/7 and Fedora 30

Understand Linux Load Averages and Monitor Performance of Linux

Monitor Server Logs in Real-Time with “Log.io” Tool on RHEL/CentOS 7/6

How to Install and Configure Zabbix Agents on Remote Linux Systems – Part 3

Perf- A Performance Monitoring and Analysis Tool for Linux

Learn Linux Tricks & Tips

How to Search and Remove Directories Recursively on Linux

How to Append Text to End of File in Linux

How to Start Linux Command in Background and Detach Process in Terminal

10 Useful Sudoers Configurations for Setting ‘sudo’ in Linux

10 Practical Examples Using Wildcards to Match Filenames in Linux

How to Monitor Progress of (Copy/Backup/Compress) Data using ‘pv’ Command

Best Linux Tools

Best Command-Line FTP Clients for Linux

The 5 Best Command Line Music Players for Linux

6 Best CCleaner Alternatives for Ubuntu

Top 6 Partition Managers (CLI + GUI) for Linux

8 Best PDF Document Viewers for Linux Systems

The 8 Best Open Source Web Servers

  • Donate to TecMint
  • Contact Us
  • Advertise on TecMint
  • Linux Services
  • Copyright Policy
  • Privacy Policy
  • Career
  • Sponsored Post
Tecmint: Linux Howtos, Tutorials & Guides © 2021. All Rights Reserved.

The material in this site cannot be republished either online or offline, without our permission.

Hosting Sponsored by : Linode Cloud Hosting

Scroll back to top