Makefile: make clean

[ulibaysya]

I just want to ask: make clean removes all files in one line like this:

[vsemku@rabochayastanciya nnn]$ make clean 
rm -f -f nnn nnn-5.1.tar.gz *.sig nnn-static nnn-static-5.1.x86_64.tar.gz nnn-icons-static nnn-icons-static-5.1.x86_64.tar.gz nnn-nerd-static nnn-nerd-static-5.1.x86_64.tar.gz nnn-emoji-static nnn-emoji-static-5.1.x86_64.tar.gz nnn-musl-static nnn-musl-static-5.1.x86_64.tar.gz src/icons-hash-gen src/icons-generated-*.h

wouldn't it be better if make clean removes all provided files with several commands one by one like this:

[vsemku@rabochayastanciya nnn]$ make clean 
rm -f -f nnn 
rm -f -f nnn-5.1.tar.gz 
rm -f -f *.sig 
rm -f -f nnn-static 
rm -f -f nnn-static-5.1.x86_64.tar.gz
...

and why rm have flag -f -f two times, not one?

sorry if this question seems strange, I am new to everything, also sorry for my english probably

[N-R-K]

and why rm have flag -f -f two times, not one?

The first one is being added by the $(RM) implicit variable and the 2nd one is added manually by us. The 2nd -f is redundant and useless, can be removed.

wouldn't it be better if make clean removes all provided files with several commands one by one like this:

"better" in what sense? A single command does the job, why would we invoke multiple commands to do the same thing?

[ulibaysya]

"better" in what sense?

I am exploring some projects' makefiles and for example hashcat has such make clean:

[vsemku@rabochayastanciya hashcat]$ make clean 
fatal: No names found, cannot describe anything.
rm -f hashcat
rm -f libhashcat.so.6.2.6
rm -rf modules/*.dSYM
rm -f modules/*.dll
rm -f modules/*.so
rm -f obj/*/*/*.o
rm -f obj/*/*.o
rm -f obj/*.o
rm -f obj/*.a
rm -rf *.dSYM
rm -f *.dylib
rm -f *.bin *.exe
rm -f *.pid
rm -f *.log
rm -f core
rm -rf *.induct
rm -rf *.outfiles
rm -rf kernels

and I thought that it has a better look than nnn's one line make clean and it might be easier to audit which files are removed or not with such output

[jarun]

This is just too cosmetic at this stage of the project.