0x04-loops_conditions_and_parsing

Loops, conditions and parsing

In this project, I began working loops and conditionals statemetns in Bash.

Helper File 🙌

• apache-access.log: An Apache access log file parsed in tasks 102 and 103.

Tasks 📃

• 0. Create a SSH RSA key pair

  • 0-RSA_public_key.pub: A public SSH key uploaded for the purposes of Holberton School.

• 1. For loop

  • 1-for_holberton_school: Bash script that displays Holberton School 10 times using a for loop.

• 2. While loop

  • 2-while_holberton_school: Bash script that displays Holberton School 10 times using a while loop.

• 3. Until Holberton School loop

  • 3-until_holberton_school: Bash script that displays Holberton School 10 times using an until loop.

• 4. If 9, say Hi!

  • 4-if_9_say_hi: Bash script that displays Holberton School 10 times using a while loop.
  • For the 9th iteration, displays Holberton School and then Hi on a new line.
  • Uses an if statement.

• 5. 4 bad luck, 8 is your chance

  • 5-4_bad_luck_8_is_your_chance: Bash script that loops from 1 to 10 using a while loop and:
    • Displays bad luck on the 4th iteration.
    • Displays good luck on the 8th iteration.
    • Displays Holberton School for all other iterations.
  • Uses the if, elif, and else statements.

• 6. Superstitious numbers

  • 6-superstitious_numbers: Bash script that displays numbers from 1 to 20 using a while loop and:
    • Displays 4 and then bad luck from China for the 4th iteration.
    • Displays 9 and then bad luck from Japan for the 9th iteration.
    • Displays 17 and then bad luck from Italy for the 17th iteration.
  • Uses a case statement.

• 7. Clock

  • 7-clock: Bash script that displays the time for 12 hours and 59 minutes.
    • Displays hours from 0 to 12.
    • Displays minutes from 0 to 59.

• 8. For ls

  • 8-for_ls: Bash script that displays the contents of the current directory in list format.
  • Only the part of the name after the first dash is displayed.

• 9. To file, or not to file

  • 9-to_file_or_not_to_file: Bash script that gives information about the holbertonschool file.
    • If the file exists, displays: holbertonschool file exists.
    • If the file does not exist, displays: holbertonschool file does not exist.
    • If the file exists and is empty, displays: holbertonschool file is empty.
    • If the file exists and is not empty, displays: holbertonschoolfile is not empty.
    • If the file exists and is a regular file, displays: holbertonschool file is a regular file.
    • Otherwise, displays nothing.

• 10. FizzBuzz

  • 10-fizzbuzz: Bash script that displays numbers from 1 to 100 in list format.
  • Displays FizzBuzz when the number is a multiple of 3 and 5.
  • Displays Fizz when the number is a multiple of 3.
  • Displays Buzz when the number is a multiple of 5.
  • Otherwise, displays the number.

• 11. Read and cut

  • 100-read_and_cut: Bash script that displays the contents of the /etc/passwd file.
  • Displays only the username, user id, and user home directory path for each line.

• 12. Tell the story of passwd

  • 101-tell_the_story_of_passwd: Bash script that tells stories based on the contents of the /etc/passwd file.
  • Displays content from the file in the format: The user USERNAME is part of the GROUP_ID gang, lives in HOME_DIRECTORY and rides COMMAND/SHELL. USER ID's place is protected by the passcode PASSWORD, more info about the user here: USER ID INFO.

• 13. Let's parse Apache logs

  • 102-lets_parse_apache_logs: Bash script that displays the visitor IP along with the HTTP status code for logs read from an Apache log access file.
  • Displays content in the format IP HTTP_CODE.
  • Uses awk.

• 14. Dig the data

  • 103-dig_the-data: Bash script that reads content from an Apace log access file and groups visitors by IP and HTTP status code.
  • Displays the grouped number of visitors to an IP address in the format OCCURRENCE_NUMBER IP HTTP_CODE.
  • Logs are grouped in order of greatest to lowest number of visitors.
  • Uses awk.