Hello,

It will be appreciated if you could help me with this questions. It's about Linux. I will give you thumbs up, I promise. You all always been so helpful. Thanks in advance guys. You all THE BEST.

1. In CentOS 7, the command to modify permissions of a file is: _____. What command would you enter to give read, write and execute permissions to the user only?

2. What is one way we can view (a single file) of the kernel log (syslog) of a typical Ubuntu Distribution?

3. Which command will allow you to monitor the access log of the Apache web server in a Linux Server running Centos 7?

4. We want to search for patterns and regular expressions in a plain text database file that keeps track of all users on the Linux System.

A) Which command can be used to complete this?

B) Which plain text file that is referenced should we be looking at?

C) Suppose we want to ignore case and search this file so that Administrator and ADMINISTRATOR are both matches. Which command (given the simple pattern: administrator) would return both matches?