Which characters need to be escaped in linux

Common characters that need to be escaped in Linux are: 1. Backslash "\", used to escape other characters; 2. Single and double quotation marks '', "", used to quote strings; 3. Space " " is used to separate command line parameters; 4. Dollar sign "$" to avoid being interpreted as variable substitution by the Shell; 5. Percent sign "%"; 6. "&" sign to prevent it from being interpreted as a background task Runner; 7. Redirection symbols "<, >, |" prevent them from being interpreted as input, output redirection or pipe operators by the Shell.

Operating system for this tutorial: Linux5.18.14 system, Dell G3 computer.

In Linux, there are some special characters that need to be escaped to be used correctly. The following are some common characters that need to be escaped:

1. Backslash (\): used to escape other characters.

2. Single quotes (') and double quotes ("): used to quote strings. If the string itself contains quotes, you need to use escape characters to ensure that the quotes are processed correctly.

3. Space ( ): used to separate command line parameters. If you need to use a file or directory name that contains spaces, you can use backslashes to escape them, or put them in quotes .

4. ##Dollar sign ($): In some cases, the dollar sign needs to be escaped to avoid being interpreted as a variable substitution by the Shell.

5. Percent sign (%): In some contexts, the percent sign needs to be escaped.

6. ampersand (&): In some cases, it is necessary to escape ampersand is escaped to prevent it from being interpreted as a background task runner.

7. Redirect symbols (<, >, |): In some cases, these special symbols Need to be escaped to prevent them from being interpreted by the shell as input, output redirection, or pipe operators.

Need to determine whether specific characters need to be escaped based on the specific context and usage scenarios characters. Generally speaking, when using these special characters in Shell commands, it is best to use appropriate escapes or quotes to ensure that they are interpreted and processed correctly.

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