No, Unix certification is not required for all computer jobs, however it is useful to have some familiarity with Unix and all the different systems that computers run on. On top of that, you would also want to have a specialty in order to make more money.
The lp and lpr commands are the traditional commands used to print jobs on UNIX.
Jobs for people who know the programming language Unix are available at many technology companies. To apply, visit the site of the company and find the link titled "jobs" and follow their instructions.
There are several places in order for one to get certification to apply for HVAC jobs. However, most of people try to get a certification from a university before applying for HVAC jobs.
You can get a network certification online at a place like this: http://www.gatlineducation.com/networkcertification.html . As for jobs, this certification is useful for getting jobs as a network technician or systems administrator.
As many as you want.
Entry level computer support technician. This are at the low end of the pay scale, at approximately $12 an hour
There is a certification test that is required prior to searching for jobs and to gain employment. You may also need additional schooling such as an associates or certificate through a local university.
The best website for phlebotomy jobs is at jobbyjob dot com. That site lists all the current openings for the industry. There is no certification required.
You do not need any certification to become a babysitter. To get customers, you can put ads up in your local supermarket to advertise your babysitting services.
If you just to a few kids in your own home you often need nothing but knowing cpr is good.
A+ certifications are meant to prove proficiency and knowledge of both the software and hardware aspects of computer technology. This is a fairly basic certification that can help in attaining positions such as desktop support, helpdesk support, or system administrator.
Many companies offer training in Unix administration including the stayahead website, the withsupport website and the verheof-training website. Once you have the qualifications it may be hard to find a job which does not require experience but similar experience can be found in most computer related jobs.