shfmt:tldr:3c95b

shfmt: Write the result to the file instead of printing it to the terminal.

shfmt

$ shfmt --write ${filename}

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The command shfmt --write ${filename} is used to format and rewrite a shell script file with the name stored in the variable ${filename} according to a set of predefined formatting rules.

Here's a breakdown of the command:

shfmt: This is the name of the command or program that is being executed. It is a shell script formatter that can be used to ensure consistent and readable formatting in shell scripts.
--write: This flag is used to inform shfmt that the changes made to the file should be written back to the same file, overwriting the original content. Without this flag, shfmt would only display the formatted output without modifying the file.
${filename}: This is a placeholder for the actual name of the file that you want to format. The command assumes that the variable ${filename} contains the appropriate name of the file you wish to format.

When you run this command, shfmt will read the contents of the file stored in the ${filename} variable, apply the formatting rules, and then overwrite the original file with the formatted version. This ensures that the shell script is correctly formatted and adheres to a consistent style.

This explanation was created by an AI. In most cases those are correct. But please always be careful and never run a command you are not sure if it is safe.

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