This is how to crate symbolic link (symlic in short), the there are two type of symlic, which are hard and soft link. Hard link create completely new file but share same inode id. If there’s update on the source file, its content should be updatated as well, vice versa. If the source file has removed the link will turn into a new file. Soft link on the other hand will broke whenever the source file removed.

[root@1305ce547374 home]# cat > hello.txt
hello world
[root@1305ce547374 home]# ls -lh
total 4.0K
-rw-r--r--. 1 root root 12 Feb 26 11:34 hello.txt
[root@1305ce547374 home]# cat hello.txt 
hello world
[root@1305ce547374 home]# ln hello.txt hard-hello.txt
[root@1305ce547374 home]# ls -lh
total 8.0K
-rw-r--r--. 2 root root 12 Feb 26 11:34 hard-hello.txt
-rw-r--r--. 2 root root 12 Feb 26 11:34 hello.txt
[root@1305ce547374 home]# ls -ilh
total 8.0K
5636097 -rw-r--r--. 2 root root 12 Feb 26 11:34 hard-hello.txt
5636097 -rw-r--r--. 2 root root 12 Feb 26 11:34 hello.txt
[root@1305ce547374 home]# ln -s hello.txt soft-hello.txt
[root@1305ce547374 home]# ls -ilh
total 8.0K
5636097 -rw-r--r--. 2 root root 12 Feb 26 11:34 hard-hello.txt
5636097 -rw-r--r--. 2 root root 12 Feb 26 11:34 hello.txt
5636101 lrwxrwxrwx. 1 root root  9 Feb 26 11:35 soft-hello.txt -> hello.txt
[root@1305ce547374 home]# cat hard-hello.txt 
hello world
[root@1305ce547374 home]# cat soft-hello.txt 
hello world
[root@1305ce547374 home]# cat >> hello.txt 
this is a new line
[root@1305ce547374 home]# cat hard-hello.txt 
hello world
this is a new line
[root@1305ce547374 home]# cat soft-hello.txt 
hello world
this is a new line
[root@1305ce547374 home]# cat >> hard-hello.txt 
this is a hard new line
[root@1305ce547374 home]# cat soft-hello.txt 
hello world
this is a new line
this is a hard new line
[root@1305ce547374 home]# cat hello.txt 
hello world
this is a new line
this is a hard new line
[root@1305ce547374 home]# ls -lih
total 8.0K
5636097 -rw-r--r--. 2 root root 55 Feb 26 11:37 hard-hello.txt
5636097 -rw-r--r--. 2 root root 55 Feb 26 11:37 hello.txt
5636101 lrwxrwxrwx. 1 root root  9 Feb 26 11:35 soft-hello.txt -> hello.txt
[root@1305ce547374 home]# rm -f hello.txt 
[root@1305ce547374 home]# ls -lih
total 4.0K
5636097 -rw-r--r--. 1 root root 55 Feb 26 11:37 hard-hello.txt
5636101 lrwxrwxrwx. 1 root root  9 Feb 26 11:35 soft-hello.txt -> hello.txt
[root@1305ce547374 home]# cat hard-hello.txt 
hello world
this is a new line
this is a hard new line
[root@1305ce547374 home]# cat soft-hello.txt 
cat: soft-hello.txt: No such file or directory

This material is refers to the rhca objectives