From c39a106f5e217e15c7049b0f545d94b3a3699aef Mon Sep 17 00:00:00 2001
From: geekpi <geekpi@users.noreply.github.com>
Date: Thu, 27 Jul 2023 08:47:24 +0800
Subject: [PATCH] translated

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-[#]: subject: "Bash Basics Series #6: Handling String Operations"
-[#]: via: "https://itsfoss.com/bash-strings/"
-[#]: author: "Abhishek Prakash https://itsfoss.com/author/abhishek/"
-[#]: collector: "lkxed"
-[#]: translator: "geekpi"
-[#]: reviewer: " "
-[#]: publisher: " "
-[#]: url: " "
-
-Bash Basics Series #6: Handling String Operations
-======
-
-In most programming languages, you'll find a string data type. A string is basically a group of characters.
-
-Bash shell is different though. There is no separate data type for strings. Everything is a variable here.
-
-But that doesn't mean that you cannot deal with strings in the same way you do in C and other programming languages.
-
-Finding substrings, replacing substrings, joining strings and many more string operations are possible in Bash shell.
-
-In this part of the Bash Basics Series, you'll learn the basic string manipulations.
-
-### Get string length in bash
-
-Let's start with the simplest option. Which is to get the length of a string. It's quite simple:
-
-```
-${#string}
-```
-
-Let's use it in an example.
-
-![Example of getting string length in bash][1]
-
-As you can see, the second example had two words in it but since it was in quotes, it was treated as a single word. Even the space is counted as a character.
-
-### Join strings in bash
-
-The technical term is concatenation of strings, one of the simplest possible string operations in bash.
-
-You just have to use the string variables one after another like this:
-
-```
-str3=$str1$str2
-```
-
-Can it go any simpler than this? I don't think so.
-
-Let's see it with an example. Here is my example script named `join.sh`:
-
-```
-#!/bin/bash
-
-read -p "Enter first string: " str1
-read -p "Enter second string: " str2
-
-joined=$str1$str2
-
-echo "The joined string is: $joined"
-```
-
-Here's a sample run of this script:
-
-![Join two strings in bash][2]
-
-### Extract substring in bash
-
-Let's say you have a big string with several characters and you want to extract part of it.
-
-To extract a substring, you need to specify the main string, the starting position of the substring and the length of the substring in the following manner:
-
-```
-${string:$pos:$len}
-```
-
-> 💡Like arrays, positioning in strings also start at 0.
-
-Here's an example:
-
-![Extracting substring in bash][3]
-
-Even if you specify the substring length greater than the string length, it will only go till the end of the string.
-
-### Replace substring in bash
-
-Let's say you have a big string and you want to replace part of it with another string.
-
-In that case, you use this kind of syntax:
-
-```
-${string/substr1/substr2}
-```
-
-> ✋ Only the first occurrence of a substring is replaced this way. If you want to replace all occurrences, use`${string//substr1/substr2}`
-
-Here's an example:
-
-![Replace substring in bash][4]
-
-As you can see above, the word good was replaced with best. I saved the replaced string to the same string to change the original.
-
-> 💡 If the substring is not found, nothing is replaced. It won't result in an error.
-
-### Delete substring in bash
-
-Let's talk about removing substrings. Let's say you want to remove part of a string. In that case, just provide the substring to the main string like this:
-
-```
-${string/substring}
-```
-
-> ✋ Only the first occurrence of a substring is deleted this way. If you want to delete all occurrences, use`${string//substr}`
-
-If the substring is found, it will be deleted from the string.
-
-Let's see this with an example.
-
-![Delete substring in bash][5]
-
-This goes without saying that if the substring is not found, it is not deleted. It won't result in an error.
-
-### 🏋️ Exercise time
-
-It's time for you to practice string manipulation with simple exercises.
-
-**Exercise 1**: Declare a string 'I am all wet'. Now change this string by replacing the word wet with set.
-
-**Exercise 2**: Create a string that saves phone numbers in the following format `112-123-1234`. Now, you have to delete all `-`.
-
-That should give you some decent practice with strings in bash. In the next chapter, you'll learn about using if-else statements in bash. Stay tuned.
-
---------------------------------------------------------------------------------
-
-via: https://itsfoss.com/bash-strings/
-
-作者：[Abhishek Prakash][a]
-选题：[lkxed][b]
-译者：[译者ID](https://github.com/译者ID)
-校对：[校对者ID](https://github.com/校对者ID)
-
-本文由 [LCTT](https://github.com/LCTT/TranslateProject) 原创编译，[Linux中国](https://linux.cn/) 荣誉推出
-
-[a]: https://itsfoss.com/author/abhishek/
-[b]: https://github.com/lkxed/
-[1]: https://itsfoss.com/content/images/2023/07/bash-string-length-example.png
-[2]: https://itsfoss.com/content/images/2023/07/join-strings-bash.png
-[3]: https://itsfoss.com/content/images/2023/07/extract-substring-bash.png
-[4]: https://itsfoss.com/content/images/2023/07/replace-substring-bash.png
-[5]: https://itsfoss.com/content/images/2023/07/bash-delete-substring.png
diff --git a/translated/tech/20230717.0 ⭐️⭐️ Bash Basics Series 6 Handling String Operations.md b/translated/tech/20230717.0 ⭐️⭐️ Bash Basics Series 6 Handling String Operations.md
new file mode 100644
index 0000000000..98cbb393bb
--- /dev/null
+++ b/translated/tech/20230717.0 ⭐️⭐️ Bash Basics Series 6 Handling String Operations.md	
@@ -0,0 +1,149 @@
+[#]: subject: "Bash Basics Series #6: Handling String Operations"
+[#]: via: "https://itsfoss.com/bash-strings/"
+[#]: author: "Abhishek Prakash https://itsfoss.com/author/abhishek/"
+[#]: collector: "lkxed"
+[#]: translator: "geekpi"
+[#]: reviewer: " "
+[#]: publisher: " "
+[#]: url: " "
+
+Bash 基础知识系列 #6：处理字符串操作
+======
+
+在大多数编程语言中，你都会找到字符串数据类型。字符串基本上是一组字符。
+
+但 Bash shell 有所不同。字符串没有单独的数据类型。这里一切都是变量。
+
+但这并不意味着你不能像在 C 和其他编程语言中那样处理字符串。
+
+在 Bash shell 中可以查找子字符串、替换子字符串、连接字符串以及更多字符串操作。
+
+在 Bash 基础知识系列的这一部分中，你将学习基本的字符串操作。
+
+### 在 bash 中获取字符串长度
+
+让我们从最简单的选项开始。也就是获取字符串的长度。这很简单：
+
+```
+${#string}
+```
+
+让我们在示例中使用它。
+
+![Example of getting string length in bash][1]
+
+正如你所看到的，第二个示例中有两个单词，但由于它用引号引起来，因此它被视为单个单词。连空格都算作一个字符。
+
+### 在 bash 中连接字符串
+]
+技术术语是字符串连接，这是 bash 中最简单的字符串操作之一。
+
+你只需像这样一个接一个地使用字符串变量：
+
+```
+str3=$str1$str2
+```
+
+还能比这更简单吗？ 我不这么认为。
+
+让我们看一个例子。这是我的示例脚本，名为 `join.sh`：
+
+```
+#!/bin/bash
+
+read -p "Enter first string: " str1
+read -p "Enter second string: " str2
+
+joined=$str1$str2
+
+echo "The joined string is: $joined"
+```
+
+以下是该脚本的运行示例：
+
+![Join two strings in bash][2]
+
+### 在 bash 中提取子字符串
+
+假设你有一个包含多个字符的大字符串，并且你想要提取其中的一部分。
+
+要提取子字符串，需要指定主字符串、子字符串的起始位置和子字符串的长度，如下所示：
+
+```
+${string:$pos:$len}
+```
+
+> 💡和数组一样，字符串中的定位也是从 0 开始。
+
+这是一个例子：
+
+![Extracting substring in bash][3]
+
+即使你指定的子字符串长度大于字符串长度，它也只会到达字符串末尾。
+
+### 替换 bash 中的子字符串
+
+假设你有一个大字符串，并且你想用另一个字符串替换其中的一部分。
+
+在这种情况下，你可以使用这种语法：
+
+```
+${string/substr1/substr2}
+```
+
+> ✋ 只有第一次出现的子字符串才会以这种方式替换。如果要替换所有出现的地方，请使用`${string//substr1/substr2}`
+
+这是一个例子：
+
+![Replace substring in bash][4]
+
+正如你在上面看到的，“good” 一词被替换为 “best”。我将替换的字符串保存到同一字符串中以更改原始字符串。
+
+> 💡 如果未找到子字符串，则不会替换任何内容。它不会导致错误。
+
+### 在 bash 中删除子字符串
+
+我们来谈谈删除子字符串。假设你要删除字符串的一部分。在这种情况下，只需将子字符串提供给主字符串，如下所示：
+
+```
+${string/substring}
+```
+
+> ✋ 通过这种方式，仅删除第一次出现的子字符串。如果要删除所有出现的内容，请使用 `${string//substr}`
+
+如果找到子字符串，则将从字符串中删除它。
+
+让我们通过一个例子来看看。
+
+![Delete substring in bash][5]
+
+不用说，如果没有找到子字符串，则不会删除它。它不会导致错误。
+
+### 🏋️ 练习时间
+
+现在是你通过简单练习来实践字符串操作的时候了。
+
+**练习 1**：声明一个字符串 “I am all wet”。现在通过用 set 替换单词 wet 来更改此字符串。
+
+**练习 2**：创建一个字符串，以 `112-123-1234` 格式保存电话号码。现在，你必须删除所有 `-`。
+
+这应该会给你一些在 bash 中使用字符串的不错的练习。在下一章中，你将学习如何在 bash 中使用 if-else 语句。敬请关注。
+
+--------------------------------------------------------------------------------
+
+via: https://itsfoss.com/bash-strings/
+
+作者：[Abhishek Prakash][a]
+选题：[lkxed][b]
+译者：[geekpi](https://github.com/geekpi)
+校对：[校对者ID](https://github.com/校对者ID)
+
+本文由 [LCTT](https://github.com/LCTT/TranslateProject) 原创编译，[Linux中国](https://linux.cn/) 荣誉推出
+
+[a]: https://itsfoss.com/author/abhishek/
+[b]: https://github.com/lkxed/
+[1]: https://itsfoss.com/content/images/2023/07/bash-string-length-example.png
+[2]: https://itsfoss.com/content/images/2023/07/join-strings-bash.png
+[3]: https://itsfoss.com/content/images/2023/07/extract-substring-bash.png
+[4]: https://itsfoss.com/content/images/2023/07/replace-substring-bash.png
+[5]: https://itsfoss.com/content/images/2023/07/bash-delete-substring.png