indent

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

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

indent --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-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 --k-and-r-style --indent-level3 --no-tabs --line-length120 path/to/source.c -o path/to/indented_source.c