Membuat associative array

Associative array adalah konstruksi yang sangat berguna dalam Bash scripting. Bentuknya mirip dengan array "biasa", namun ada beberapa perbedaan penting dalam cara membuat, memanipulasi, dan sifat kuncinya.

Associative array memungkinkan Anda melakukan pengindeksan menggunakan kata alih-alih angka, yang dapat memudahkan saat memasukkan dan mengakses properti. Misalnya, alih-alih mengakses 'indeks 4' dari array berisi informasi kota, Anda dapat mengakses properti city_population, yang jauh lebih jelas!

Dalam latihan ini, Anda akan berlatih membuat dan menambahkan elemen ke associative array. Lalu, Anda akan mengakses beberapa properti khusus yang hanya dimiliki oleh associative array. Mari mulai!

CATATAN: jika Anda mengirimkan kode yang salah, Anda mungkin perlu menyegarkan peramban untuk menghapus variabel lama dan sebagainya yang memengaruhi rangkaian pengujian sebelum mengirim ulang

Latihan ini adalah bagian dari kursus

Pengantar Bash Scripting

Latihan interaktif praktis

Cobalah latihan ini dengan menyelesaikan kode contoh berikut.

# Create empty associative array
declare ____ ____

# Add the key-value pairs
model_metrics[____]=____
model_metrics____=____
model_metrics____=____

Edit dan Jalankan Kode

Latihan ini adalah bagian dari kursus

Pengantar Bash Scripting

SkillTag.level.intermediateSkillTag.label

4.8+

Mulai Kursus Gratis

Save yourself time when performing complex repetitive tasks. You’ll begin this course by refreshing your knowledge of common command-line programs and arguments before quickly moving into the world of Bash scripting. You’ll create simple command-line pipelines and then transform these into Bash scripts. You’ll then boost your skills and learn about standard streams and feeding arguments to your Bash scripts.

Exercise 1: Introduction and refresher Exercise 2: Extracting scores with shell Exercise 3: Searching a book with shell Exercise 4: Your first Bash script Exercise 5: A simple Bash script Exercise 6: Shell pipelines to Bash scripts Exercise 7: Extract and edit using Bash scripts Exercise 8: Standard streams & arguments Exercise 9: Using arguments in Bash scripts Exercise 10: Using arguments with HR data

Master the bread and butter of Bash scripts—variables! In this chapter, you’ll learn how to create basic string and numeric variables, and perform calculations on these variables. You’ll also learn about the magic of a shell-within-a-shell (shell-ception), opening up huge opportunities for advanced scripting.

Exercise 1: Variabel dasar di Bash Exercise 2: Menggunakan variabel di Bash Exercise 3: Shell di dalam shell Exercise 4: Variabel numerik di Bash Exercise 5: Mengonversi Fahrenheit ke Celsius Exercise 6: Mengekstrak data dari file Exercise 7: Array di Bash Exercise 8: Membuat array Exercise 9: Membuat associative array

Latihan Saat Ini

Exercise 10: Perhitungan iklim di Bash

Life isn't always linear and neither should your Bash scripts. In this chapter, you’ll take your Bash scripts to the next level by learning control statements. You’ll learn the differences between FOR, WHILE, IF, and CASE statements and how to use them in your Bash scripts. Armed with these new tools, you’ll be ready to create more advanced Bash scripts with conditional logic.

Exercise 1: IF statements Exercise 2: Sorting model results Exercise 3: Moving relevant files Exercise 4: FOR loops & WHILE statements Exercise 5: A simple FOR loop Exercise 6: Correcting a WHILE statement Exercise 7: Cleaning up a directory Exercise 8: CASE statements Exercise 9: Days of the week with CASE Exercise 10: Moving model results with CASE Exercise 11: Finishing a CASE statement

Give your Bash scripts a powerful new addition by building useful functions to process data and variables. In this last chapter, you will learn the structure of functions in Bash, how to use functions to help automate frequent tasks, and program your scripts to run on schedule without needing to even lift a finger.

Exercise 1: Basic functions in Bash Exercise 2: Uploading model results to the cloud Exercise 3: Get the current day Exercise 4: Arguments, return values, and scope Exercise 5: A percentage calculator Exercise 6: Sports analytics function Exercise 7: Summing an array Exercise 8: Scheduling your scripts with Cron Exercise 9: Analyzing a crontab schedule Exercise 10: Creating cronjobs Exercise 11: Scheduling cronjobs with crontab Exercise 12: Thanks and wrap up