# indent > Change the appearance of a C/C++ program by inserting or deleting whitespace. > More information: . - Format C/C++ source according to the Berkeley style: `indent {{path/to/source_file.c}} {{path/to/indented_file.c}} -nbad -nbap -bc -br -c33 -cd33 -cdb -ce -ci4 -cli0 -di16 -fc1 -fcb -i4 -ip -l75 -lp -npcs -nprs -psl -sc -nsob -ts8` - Format C/C++ source according to the style of Kernighan & Ritchie (K&R): `indent {{path/to/source_file.c}} {{path/to/indented_file.c}} -nbad -bap -nbc -br -c33 -cd33 -ncdb -ce -ci4 -cli0 -cs -d0 -di1 -nfc1 -nfcb -i4 -nip -l75 -lp -npcs -nprs -npsl -nsc -nsob`