How to use the awk command: 2-Minute Linux Tips

The video tutorial introduces the AUC command, a scripting language useful for text selection on the command line. It covers basic usage, such as selecting fields from text, and progresses to more advanced commands like filtering lines in files and conditional field display. The tutorial demonstrates practical examples using the Etsy group file, showcasing AUC's versatility in handling text data.

What is the default field separator used by AWK when processing text?

• Whitespace

• Colon

• Semicolon

• Comma

Which command would you use to display lines in a file that start with a specific letter using AWK?

• awk '/^T/'

• awk '/T$/'

• awk '/T/'

• awk '/T/' -i

How can you limit the output of AWK to the first four lines of a file?

• Use 'tail -n 4'

• Use 'head -n 4'

• Use 'awk | head 4'

• Use 'awk -n 4'

What condition would you use in AWK to display fields greater than a certain value?

• $3 < 1000

• $3 == 1000

• $3 > 1000

• $3 != 1000

How can you use AWK to show lines that do not end with a colon?

• awk '!/^:/'

• awk '/^:/'

• awk '!/:$/'

• awk '/:$/'