File Manipulation Commands

Question 1

head

Answer 1

• A command-line utility for outputting the first ten lines of a file provided to it

Question 2

tail

Answer 2

• A command line utility for outputting the last ten lines of a file provided to it

Question 3

cat

Answer 3

• (concatenate)
• A command-line utility for outputting the contents of a file to the screen
• Allows you to create, view, concatenate files (Linux)

Question 4

grep

Answer 4

• A command-line utility for searching plain-text data sets for lines that have a match on a regular expression or pattern

Question 5

chmod

Answer 5

• A command-line utility used to change the access permissions of file system objects
• Linux

Question 6

logger

Answer 6

• Utility that provides an easy way to add messages to the /var/log/syslog file from the command line or from other files