How to Preserve Inner String Breaks When Splitting Go Strings with Newlines?

Differentiating Newlines in Go: Preserving Inner String Breaks

When reading output from Linux commands using exec.Command, the resulting byte array may contain both literal newline characters ("n") and escaped newlines ("\n"). This can pose a challenge when trying to split the output into lines while preserving inner string breaks.

One approach is to replace escaped newlines with actual newlines using the following line:

strings.Replace(out, `\n`, "\n", -1)

By doing this, we effectively convert the escaped newlines to their original form, allowing us to split the output into lines using standard methods such as:

lines := strings.Split(out, "\n")

This will result in the output being split into lines, but the breaks within strings will be preserved. For example, consider the following output:

First line: "test1"
Second line: "123;\n234;\n345;"
Third line: "456;\n567;"
Fourth line: "test4"

Splitting this output using the above technique will result in the following lines:

First line: "test1"
Second line: "123;\n234;\n345;"
Third line: "456;\n567;"
Fourth line: "test4"

As you can see, the inner string breaks are preserved, and the output is correctly split into lines.

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