Hello all,

I do not understand the meaning of some columns in the result of executing 'ls -l'. For example, i got the following result by run 'ls -l'

total 3531


-rw-r--r-- 1 root root 1351680 Oct 17 20:50 fileindex.rpm
-rw-r--r-- 1 root root 16384 Oct 17 20:50 groupindex.rpm
-rw-r--r-- 1 root root 16384 Oct 17 20:50 nameindex.rpm
drw-r--r-- 2 root root 233 Oct 17 20:50 dirA


I do not know

(1) I know that 'total 3531' means the number of blocks used by a directgory, but i do know if i can calculate the size in byte of the directory from the number of blocks.
(2) what is the meaning of the second column, i.e., containing the number 1, 1, 1, 2.
(3)What is the meaning of the fifth column for a directory, such as the number '233' for the directory 'dirA'.


thanks

Shows the number of links to a file or directory.
Shows the file size in bytes unless the -h option is used, as in 'ls -lh'.