Uploaded October 2012 | Updated September 2026, 2 weeks ago
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By suphalb@techytube, for more from this author visit:
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One of the important task for a Linux Server Administrator is User and Group administration on Linux Server. I demonstrate in this video how to Maintain and manage user and groups, What are the files are responsible to control user and groups of the linux system, Various commands related to user and group administration likewise to add user account, to delete user account, to modify user account and so on. User And Group Administration are bundled into 4 parts of videos. Please watch all of these 4 parts to know maximum about user and group administration what would be really helpful for Server Administration purpose.
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TechyTube Team.
Subscribe to our channel here for notifications on new video trainings. For more videos on technology, visit our website at http://www.techytube.com.
By suphalb@techytube, for more from this author visit:
techytube.com/author/suphalb
One of the important task for a Linux Server Administrator is User and Group administration on Linux Server. I demonstrate in this video how to Maintain and manage user and groups, What are the files are responsible to control user and groups of the linux system, Various commands related to user and group administration likewise to add user account, to delete user account, to modify user account and so on. User And Group Administration are bundled into 4 parts of videos. Please watch all of these 4 parts to know maximum about user and group administration what would be really helpful for Server Administration purpose.
Thanks
TechyTube Team.



![Instance Methods and Class Methods in Objective-C
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Instance Methods and Class Methods in Objective-C is very similar to the same concepts implemented in other object oriented programming languages.
Instance methods are the usual methods, and we always need some object(s) to call those specific methods. When we declare and implement them, we always start with the - (minus sign). The syntax for calling an instance method is:
[objectName instanceMethodName];
For class methods we do not need any object created in our program in order to call them.
They always start with the + (plus sign). The syntax for calling a class method is:
[ClassName classMethodName]; Instance Methods and Class Methods in Objective-C](https://i.ytimg.com/vi/sjFLaJD_cgA/mqdefault.jpg)






