Questions and Answers
What is the primary function of the apropos command?
To perform a keyword search in the manual pages
What type of information does section 5 of manual pages contain?
Configuration files
Which protocol has replaced the X Window System as the default display protocol in RHEL 8?
Wayland
What is the default number of days files in /tmp are kept before they are automatically deleted if not accessed or modified?
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What is the default display manager in RHEL 8?
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What command can be used to display the tutorial of a command?
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Which three categories can Linux file systems be divided into?
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What command can be used to determine the full path for a specified command?
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What command shows the absolute path of the current working directory.
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What service is responsible for creating device nodes at system startup?
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How many times do you need to run the lscpu command to get information on all processor cores?
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Which three formats RHEL 8 documentation is available in at docs.redhat.com?
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What command displays the hierarchy of a directory?
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Linux commands may be categorized into two groups: privileged and non-privileged. True or False?
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What is the -R option used for with the ls command?
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What option is used for listing hidden files in a directory?
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Which command can be used to determine the time the kernel was build?
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What type of file systems are available in Linux?
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Study Notes
Manual Page Search
- The apropos command is used to perform a keyword search in the manual pages.
System Startup
- The udevd service creates device nodes at system startup.
Current Working Directory
- The pwd command shows the absolute path of the current working directory.
RHEL 8 Documentation
- RHEL 8 documentation is available in three formats: PDF, EPUB, and HTML.
Manual Pages
Section 5
- Section 5 of the manual pages contains information on configuration files.
Display Protocol
- Wayland is the new default display protocol in RHEL 8, replacing X Window System.
lscpu Command
- The lscpu command needs to be run only once to pull information for all processor cores.
Command Tutorial
- The info or pinfo command can be used to display the tutorial of a command.
Linux File Systems
- Linux file systems can be divided into three categories: disk-based, network-based, and memory-based file systems.
Command Path
- The which, whereis, and type commands can be used to determine the full path for a specified command.
Directory Hierarchy
- The tree command displays the hierarchy of a directory.
Linux Commands
- Linux commands can be categorized into two groups: privileged and non-privileged.
Default Display Manager
- GNOME Display Manager is the default display manager in RHEL 8.
ls Command Options
- The -R option is used for recursive directory listing, and the -a option is used for listing hidden files.
/tmp Directory
- Files in /tmp are kept for 10 days before they are automatically deleted if not accessed or modified.
Kernel Build Time
- The uname command shows the kernel build time.
Filesystem Hierarchy Standard
- RHEL follows the Filesystem Hierarchy Standard.
Manual Page Search
- The apropos command is used to perform a keyword search in the manual pages.
System Startup
- The udevd service creates device nodes at system startup.
Current Working Directory
- The pwd command shows the absolute path of the current working directory.
RHEL 8 Documentation
- RHEL 8 documentation is available in three formats: PDF, EPUB, and HTML.
Manual Pages
Section 5
- Section 5 of the manual pages contains information on configuration files.
Display Protocol
- Wayland is the new default display protocol in RHEL 8, replacing X Window System.
lscpu Command
- The lscpu command needs to be run only once to pull information for all processor cores.
Command Tutorial
- The info or pinfo command can be used to display the tutorial of a command.
Linux File Systems
- Linux file systems can be divided into three categories: disk-based, network-based, and memory-based file systems.
Command Path
- The which, whereis, and type commands can be used to determine the full path for a specified command.
Directory Hierarchy
- The tree command displays the hierarchy of a directory.
Linux Commands
- Linux commands can be categorized into two groups: privileged and non-privileged.
Default Display Manager
- GNOME Display Manager is the default display manager in RHEL 8.
ls Command Options
- The -R option is used for recursive directory listing, and the -a option is used for listing hidden files.
/tmp Directory
- Files in /tmp are kept for 10 days before they are automatically deleted if not accessed or modified.
Kernel Build Time
- The uname command shows the kernel build time.
Filesystem Hierarchy Standard
- RHEL follows the Filesystem Hierarchy Standard.
