File Permission and Ownership

rwx rwx rwx     777 Read write & execute for all users
rwx r-x r-x        755 Read & execute forall plus write for owner
rwx r-x —         750 Read and execute for owner and group, write for owner
rwx — —         700 Read, write & execute for owner only
rw- rw- rw-       666 Read and write for all
rw- rw- —       664 read and write for owner and group , r all

rw- rw- —      660 read and write for owner and group

rw- r– r–      644 read and write for owner , read for group and others

rw- r– —      640 read and write for owner read only for group

rw- — —      600 read and write for owner

r– — —      400 read for owner