- Lab
- A Cloud Guru
Using the Command Line to Get Help
In this hands-on lab, we'll make use of documentation available from the command line to answer specific questions about a command or file. Man and info pages are readily available, useful sources of documentation on Linux commands and configuration files.
Path Info
Table of Contents
-
Challenge
Determine How Many Lines the File Contains
- The documentation found in the man and info pages suggests that the
-loption may be used to determine the total number of lines.
wc -l longfile.txt- Run the command and output the result into a new file named
value.txt.
wc -l longfile.txt > value.txt - The documentation found in the man and info pages suggests that the
-
Challenge
Determine the Number of Characters on the Longest Line
- The documentation found in the man and info pages suggests that the
-Loption may be used to determine the number of characters on the longest line.
wc -L longfile.txt- Run the command and append the result to the
value.txtfile.
wc -L longfile.txt >> value.txt - The documentation found in the man and info pages suggests that the
-
Challenge
Determine the Total Number of Characters in the File
- The documentation found in the man and info pages suggests that the
-moption may be used to determine the total number of characters in the file.
wc -m longfile.txt- Run the command and append the result to the
value.txtfile.
wc -m longfile.txt >> value.txt - The documentation found in the man and info pages suggests that the
What's a lab?
Hands-on Labs are real environments created by industry experts to help you learn. These environments help you gain knowledge and experience, practice without compromising your system, test without risk, destroy without fear, and let you learn from your mistakes. Hands-on Labs: practice your skills before delivering in the real world.
Provided environment for hands-on practice
We will provide the credentials and environment necessary for you to practice right within your browser.
Guided walkthrough
Follow along with the author’s guided walkthrough and build something new in your provided environment!
Did you know?
On average, you retain 75% more of your learning if you get time for practice.
