ln

Hard link

qais@debian60:~$ echo "This is a file" > basic.file
qais@debian60:~$ ln basic.file hardlink.file
qais@debian60:~$ ls -lai *.file
644658 -rw-r--r-- 2 qais qais 15 Sep 21 13:23 basic.file
644658 -rw-r--r-- 2 qais qais 15 Sep 21 13:23 hardlink.file
qais@debian60:~$ cat hardlink.file
This is a file

Soft link

qais@debian60:~$ ln -s basic.file softlink.file
qais@debian60:~$ ls -lai *.file
644658 -rw-r--r-- 2 qais qais 15 Sep 21 13:23 basic.file
644658 -rw-r--r-- 2 qais qais 15 Sep 21 13:23 hardlink.file
644821 lrwxrwxrwx 1 qais qais 10 Sep 21 13:24 softlink.file -> basic.file
qais@debian60:~$ cat softlink.file 
This is a file