This is purely for those people only who:

1. Want to learn Linux

2. Want to appear in Red Hat Linux Certified System Administrator Exam

   This is designed to take every topic of the RHCSA exam. After going through, you will surely pass the exam. Apart from this course, you can get some basic knowledge such as

• File system hierarchy

• •     - / - This is top level directory
  

  • - /root - It is home directory for root user • - /home - It is home directory for other users • - /boot - It contains bootable files for Linux • - /etc - It contains all configuration files • - /usr - by default softwares are installed in this directory • - /bin - It contains commands used by all users • - /sbin - It contains commands used by only root user (root) Linux basic Commands • - cat (create & append file) • - touch (create blank file) • - nano (create & edit file) • - vi/vim (create & edit file) • - ls (list) (-a, -la) • - cd (change directory) • - pwd (print working directory) • - mkdir (create directory, multiple) • - cp (copy) • - mv (move) • - mv (rename) • - rm (remove file) • - tree (see in tree structure) • - rm -rf(remove directory & recursive) • - grep (pick & print) • - less (see output) • - head (see top 10 lines) • - tail (see last 10 lines) • - sort (display in Alphabetic/Numeric order) • - User • - Group • - Soft Link (shortcut) • - Hard Link (backup) • - /tar (to pack) • - gz (to compress) • - yum (to install) • - wget (to download) • - File/Directory Permissions: • - chmod (permissions) • - chown (owner) • - chgrp (group) • - hostname (to see hostname) • - ifconfig (to get ip address) • - cat /etc/rele (to get os version) • - apt get install httpd (to install package) • - yum update httpd (to upgrade package) • - yum remove httpd (to uninstall package) • - yum list installed (to see installed packages) • - service httpd status (to see status) • - service httpd start (to start service) • - service httpd reload (to restart service) • - service httpd restart (to restart service) • - chkconfig httpd on (to start service permanently) • - chkconfig httpd off (to stop service permanently) • - Redirection (redirecting output) • - which (to see package installed or not) • - sudo (to get root privileges) • - whoami (to see user) • - find -type f (to see all files in current directory) • - find -type d (to see all directories in current directory) • - find / -type f (to see all files under top level root directory) • - find / -type d (to see all directories under top level root directory) • - find / -type f -name <file_name> (to search specific file under top level root directory) • - find / -type d -name <dir_name> (to search specific dir under top level root directory) • - Advanced • AWK,GREP