Learning samba complex user permission settings.

Learning samba complex user permission settings, explaining the following command-Linux general technology-Linux technology and application information. The following is a detailed description. Please explain the following command. Thank you. Just explain a few representative statements. Thank you.
Root @ beinanIBM:/home # useradd-g siradm-G sirmas, siruser-d/home/samba-s/bin/false siradm


5.3 ownership and permissions of related directories;

Root @ beinanIBM:/home # ls-l | grep samba

Drwxr-xr-x 5 root 128 samba

Root @ beinanIBM:/home # ls-l | grep samba

Drwxr-xr-x 5 siradm 128 samba

Root @ beinanIBM:/home # cd/home/samba/

Root @ beinanIBM:/home/samba # ls-lh

Total 0

Drwxr-xr-x 2 root 48 software

Drwxr-xr-x 2 root 48 public document

Drwxr-xr-x 2 root 48 shared writable

Drwxr-xr-x 4 root 96 Member

Drwxr-xr-x 4 root 96 Management Department

Root @ beinanIBM:/home/samba # chown-R siradm: sirmas software public document sharing writable Management Department

Root @ beinanIBM:/home/samba # chown-R siradm: siruser Member

Root @ beinanIBM:/home/samba # chmod 1777 shared writable

Root @ beinanIBM:/home/samba # chmod 775 software public document

Root @ beinanIBM:/home/samba # chmod 770 Administrator

Root @ beinanIBM:/home/samba # ls-lh

Total 0

Drwxrwxr-x 2 siradm sirmas 48 software

Drwxrwxr-x 2 siradm sirmas 48 public document

Drwxrwxrwt 2 siradm sirmas 48 shared writable

Drwxrwx --- 4 siradm siruser 96 Member

Drwxrwx --- 4 siradm sirmas 96 Management Department

Root @ beinanIBM:/home/samba # cd member

Root @ beinanIBM:/home/samba/member # chown sir03: sirmas sir03

Root @ beinanIBM:/home/samba/member # chown sir03: sirmas sir04

Root @ beinanIBM:/home/samba/member # chmod 770 sir03 sir04

Root @ beinanIBM:/home/samba/member # ls-lh

Total 0

Drwxrwx --- 2 sir03 sirmas 48 sir03

Drwxrwx --- 2 sir04 sirmas 48 sir04

Root @ beinanIBM:/home/samba/member # cd ../Management Department/

Root @ beinanIBM:/home/samba/Management Department # ls

Sirmas01 sirmas02

Root @ beinanIBM:/home/samba/Management Department # ls-lh

Total 0

Drwxr-xr-x 2 root 48 sirmas01

Drwxr-xr-x 2 root 48 sirmas02

Root @ beinanIBM:/home/samba/Management Department # chown sirmas01: sirmas sirmas01

Root @ beinanIBM:/home/samba/Management Department # chown sirmas02: sirmas sirmas02

Root @ beinanIBM:/home/samba/Management Department # ls-lh

Total 0

Drwxr-xr-x 2 sirmas01 sirmas 48 sirmas01

Drwxr-xr-x 2 sirmas02 sirmas 48 sirmas02