DBID Database Identifier (DBID) is a unique number that can be identified by RMAN so as to do backup and restore whenever needed. In some… Read More »How to Find Oracle DBID
3 kinds of exquisite fruit platters that customers can order in our restaurant.[root@localhost ~]# cat -n fruits.lst 1 apple banana cherry mango 2… Read More »How to grep A But Not B out of Text
In this post, I will introduce 3 ways to remove blank lines in files. Let's see the original file in this example first.[root@localhost ~]$ cat… Read More »3 Ways to Remove Blank Lines on Linux