techfolks_javascript

alter table and make id as auto increment

ALTER TABLE internal MODIFY COLUMN id INT(32) NOT NULL auto_increment PRIMARY KEY;

Using For Loop Looping through Alphabets letters

Using For Loop Looping through letters is possible for($i = ‘S’; $i != ‘AC’; $i++) {echo $i.’ ‘;} Note: $i <= ‘AC’ it only works with $i != ‘AC’  Output : S T U V W X Y Z AA AB

Unzip using 7zip on Linux Centos

7z x filename.zip extract all zip archives 7z x *.zip to unzip on specific location or folder 7z x filename.zip foldername 7z x *.zip foldername Install 7zip on Linux Centos yum install p7zip Install 7zip on Linux Ubuntu sudo apt-get install p7zip a to archive $ 7za a myfiles.7z myfiles/