Unix

Question 1

What does ls -1 do?

Answer 1

That’s a lowercase letter l), which will distinguish between files and directories, and show sizes and dates as well

Question 2

What command would you use to enter or view short text files?

Answer 2

cat > new_file.txt Ctrl-D(for EOF) returns you to the command prompt

Question 3

What is a slightly more satisfying text-viewing expderience than cat?

Answer 3

less existing_file.txt space bar - move forward a screen b - to move back a screenful q - to quit h- for help

Question 4

How do you use clang to compile your program?

What does it do?

Answer 4

clang -Wall my_source.c -o my_program

This will compile my_source. and generate the executable my_program in the current directory

The -Wall option enables all warnings.

Question 5

What does –analyze do?

Answer 5

Examines your program, it does not compile.

Question 6

How do you redirect output from your program and redirect it to a text file?

Answer 6

./my_program > my_output.txt

Question 7

If you make an infinite loop in Unix, how do you exit it?

Answer 7

Ctrl-C to quit