tldr/pages/common/indent.md

indent

Change the appearance of a C/C++ program by inserting or deleting whitespace. More information: https://www.gnu.org/software/indent/manual/indent/Option-Summary.html.

• Format C/C++ source according to the Linux style guide, automatically back up the original files, and replace with the indented versions:

indent {{[-linux|--linux-style]}} {{path/to/source.c}} {{path/to/another_source.c}}

• Format C/C++ source according to the GNU style, saving the indented version to a different file:

indent {{[-gnu|--gnu-style]}} {{path/to/source.c}} -o {{path/to/indented_source.c}}

• Format C/C++ source according to the style of Kernighan & Ritchie (K&R), no tabs, 3 spaces per indent, and wrap lines at 120 characters:

indent {{[-kr|--k-and-r-style]}} {{[-il|--indent-level]}}3 {{[-nut|--no-tabs]}} {{[-l|--line-length]}}120 {{path/to/source.c}} -o {{path/to/indented_source.c}}