Show all columns of a table.

Syntax: SHOW COLUMNS FROM the_table_name;

Example: Show all columns of the mysql user table.

mysql> SHOW COLUMNS FROM mysql.user;

Filter contents from two different content types with two different fields.

1. Add two fields to the field list
2. Add "Global: Combine fields filter"
3. Add conditoin EX : contains 1

Content Filtering

Allow all : config.allowedContent = true;

Allowing any class in the editor is

config.extraAllowedContent = '*(*)';

Edit the CKEditor profile, Add following line to the JavaScript Configuration on Advance options.

config.templates_replaceContent = false;

To repair a broken grub boot from a linux live CD/DVD/USB. For the grub2 EFI boot from uEFI mode and BIOS for BIOS mode.

Then install boot-repair tool from PPA

#Add PPA

sudo add-apt-repository ppa:yannubuntu/boot-repair

#Update apt

sudo apt-get update