Old boys Linux operation and maintenance discipline super-network class costs 6800 yuan, and offline full-time class costs 2 1800 yuan; The study period is about 4-5 months; You can try 14 days for free, and you don't need any fees in the early stage (this is very important to avoid being routine), and then pay the tuition after you are satisfied;
I don't know what your foundation is. If you want to change careers and have a weak academic background and foundation, I suggest you choose offline full-time study. This kind of study effect is also the best, and the daily study time is 12- 14 hours. After 4-5 months of study, you can find an ideal job related to Linux operation and maintenance.