Linux common classification of files
Classification of files :
–rw-r–r– 1 oracle oinstall 4626849792 Sep 9 02:56 sibel090912.dmp
‘-‘ –> standard file
drwxrwxr-x 4 oracle oinstall 4096 Dec 7 2011 app
‘d‘ –> directory
crw——- 1 vcsa tty 7, 131 Nov 5 07:30 vcsa3
‘c‘ –> Character device
lrwxrwxrwx 1 root root 13 Nov 5 07:28 MAKEDEV -> /sbin/MAKEDEV
‘l‘ –> Symbloic link
brw-r—– 1 root disk 7, 0 Nov 5 07:28 loop0
‘b‘ –> block stoarge device i.e. hard disk
One Comment
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DBA 
Let’s add the “sticky” bit to those, since sometimes we need $TMP
drwxrwxrwt 15 root root 4096 Nov 10 09:40 tmp
————t <= this t means that users on the system can freely do 'mkdir -p' for example 😉
Have a great day!