ls command: what does the first line mean? When I do `ls -l` I get this: calico@A000505:~/Documentos$ ls -l total 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.c But 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?

The number of 1kB blocks _used_ by the files in the directory, non-recursively.

Use `ls -lh` to have some more meaningful output.