Linux Concepts
What is the core of Linux?
A. Shell
B. Terminal
C. Kernel
D. Utility
C. Kernel
Show current directory
A. ls
B. pwd
C. cd
D. whoami
Answer: B. pwd
Which symbol represents the root directory?
A. ~
B. ..
C. /
D. .
Answer: C. /
Which command creates an empty file named file.txt?
A. mkdir file.txt
B. touch file.txt
C. cat file.txt
D. cd file.txt
Answer: B. touch file.txt
What interprets user commands?
Shell
Show current user.
whoami
Symbol for parent directory?
→ ..
Which command displays only .txt files in the current directory?
ls *.txt
Linux running many tasks at once is called?
Multitasking
Which command shows the first 5 lines of report.txt?
head -n 5 report.txt
Path starting with / is called?
Absolute path
Rename old.txt to new.txt
mv old.txt new.txt
In Linux : Which component is closer to hardware:
Kernel
You know a keyword but not the command name
apropos
Shortcut for home directory?
→ ~
Linux was created by whom?
Linus Torvalds
Most of the Linux kernel is written primarily in which programming language?
C
Identify whether cd is builtin or external.
type cd
You are in /home/student. Which command shows all files, including hidden files, inside etc folder without changing your current directory?
Answer: ls -a /etc
UNIX was originally developed at which research organization?
Bell Labs