indent:tldr:812b2

The provided command:

indent --k-and-r-style --indent-level3 --no-tabs --line-length120 ${path-to-source-c} -o ${path-to-indented_source-c}

is using the indent command-line utility to format a C source code file according to specific style and indentation preferences.

Let's break down the command and its options:

• indent: It is the name of the command to be executed. In this case, it refers to the indent utility.
• --k-and-r-style: This option specifies that the code should be formatted using the K&R (Kernighan and Ritchie) coding style. K&R style includes placing opening braces on the same line as the corresponding control statement and using a specific indentation format.
• --indent-level3: This option sets the indentation level to 3 spaces. It means each level of indentation will be 3 spaces.
• --no-tabs: This option instructs indent not to use tabs for indentation, rather use spaces only.
• --line-length120: This option sets the maximum line length to 120 characters. If a line exceeds this limit, indent will break it into multiple lines.
• ${path-to-source-c}: This placeholder indicates the path to the source C file that you want to format. Replace ${path-to-source-c} with the actual path to your C file.
• -o ${path-to-indented_source-c}: This option followed by a path specifies the output file for the indented source code. Replace ${path-to-indented_source-c} with the desired path for the formatted C file.

By combining these options, the indent utility will parse and reformat the C source code contained within the specified input file using the provided style, indentation, and other preferences. The formatted code will then be saved to the specified output file.