Skrip Bash sederhana

Selamat datang di Latihan IDE pertama Anda! Di sebelah kiri, terdapat direktori berisi folder dan beberapa file. Anda dapat membuka file dan melihat kodenya di panel kanan. Perubahan akan tersimpan otomatis setiap beberapa detik, namun Anda tetap dapat menggunakan cmd + s (di Mac, atau ctrl + s di Windows) untuk menyimpan.

Anda dapat menjalankan skrip menggunakan tombol run this file atau melalui jendela terminal di bawah (dengan perintah bash script.sh). Menjalankan di terminal adalah kebiasaan baik untuk kasus penggunaan nyata dan akan diperlukan nanti saat kita membahas argumen.

IDE interface annotated screenshot

Mari mulai dengan contoh yang sangat dasar untuk berlatih mengubah argumen baris perintah (shell) menjadi skrip Bash. Di editor yang disediakan, baris pertama sudah dituliskan untuk Anda. Ingat, itu disebut 'hash-bang' atau 'shebang'? Pada lingkungan ini bash tidak berada di /usr/bash melainkan di /bin/bash. Anda dapat mengonfirmasinya dengan perintah which bash.

Ada sebuah file di direktori kerja Anda bernama server_log_with_todays_date.txt. Tugas Anda adalah menulis skrip Bash sederhana yang melakukan konkatenasi file tersebut ke terminal sehingga Anda dapat melihat isinya.

Latihan ini adalah bagian dari kursus

Pengantar Bash Scripting

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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: Pendahuluan dan penyegaran Exercise 2: Mengekstrak skor dengan shell Exercise 3: Mencari di sebuah buku dengan shell Exercise 4: Script Bash pertama Anda Exercise 5: Skrip Bash sederhana

Latihan Saat Ini

Exercise 6: Dari pipeline Shell ke skrip Bash Exercise 7: Ekstrak dan sunting menggunakan skrip Bash Exercise 8: Aliran standar & argumen Exercise 9: Menggunakan argumen dalam skrip Bash Exercise 10: Menggunakan argumen dengan data HR

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: Basic variables in Bash Exercise 2: Using variables in Bash Exercise 3: Shell within a shell Exercise 4: Numeric variables in Bash Exercise 5: Converting Fahrenheit to Celsius Exercise 6: Extracting data from files Exercise 7: Arrays in Bash Exercise 8: Creating an array Exercise 9: Creating associative arrays Exercise 10: Climate calculations in 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