Security Tools Part 3 (File Manipulation)

Question 1

What command-line utility is used for outputting the first ten lines of a file?

Answer 1

head

Question 2

What command-line utility is used for outputting the last ten lines of a file?

Answer 2

tail

Question 3

What command-line utility is used for outputting the entire file?

Answer 3

cat (concatenate)

Question 4

What command-line utility is used for searching plain-text data for lines that match the search input?

Answer 4

grep

Question 5

What command-line utility is used to change access permissions of file system objects?

Answer 5

chmod (change mod)

Question 6

What utility provides an easy way to add message to the /var /log /syslog files from the command line or other files?

Answer 6

logger