In this article, ignore care using grep command, grep is case sensitive, and configure the permanent to ignore the case in the .bashrc file
10 useful Basic Commands of Linux, list, make directory, remove directory and file, check the process, check the logs.
atop command install in Linux CentOS, Ubuntu, and in Amazon Linux 2 servers. Find atop command logs path, install atop any version of Linux.
last command in Linux is to check the last logged in Users, lastb is to check the failed log in users and lastlog is to check the recent logged in Users.
grep command in Linux is used to search the pattern in a file, search the whole line, exact match, exclude a word, search in directories.