This day, called Quadruple Witching Day or ‘four witch’s day’, refers to the day when the expiration of index futures, index options, individual stock options, and individual stock futures overlap. (more…)
Command ‘find’ is used to search for files and directories, Unix/Linux
find [OPTION…] [PATH] [EXPRESSION…] (more…)
Are you an old man out of date? It is necessary to know popular SNS in the trend of the times. Choose the social media social media platform that’s right for you
What are the characteristics and usage of each vaccine for Corona19?
Reference :
http://ncv.kdca.go.kr
Basic knowledge for beginners
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