When I do ls -l I get this:calico@A000505:~/Documentos$ ls -ltotal 2020-rwxr-xr-x 1 calico calico    8559 2010-11-16 11:12 a.out-rwxrw-rw- 1 smt    smt    2050138 2010-10-14 10:40 Java2.pdf-rwxrw-rw- 1 ocv    ocv        234 2010-11-16 11:11 test.cBut what does the total 2020 mean? I only have 3 files so it's not the number of files or directories, and I guess it's not the size either. So what is it?
ls command: what does the first line mean?
shell;ls
The number of 1kB blocks used by the files in the directory, non-recursively.Use ls -lh to have some more meaningful output.