Uploaded October 2012 | Updated September 2026, 2 weeks ago
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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.



![How to programmatically set images in iOS
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The UIImageView class provides a view-based container for displaying images on iOS devices screens.
Most of the times we will set images for our UI controls visually, using the Xcode integrated Interface Builder.
But there may as well situations when we need to do that programmatically (probably we need to dynamically set images depending on different flags or situations). In those cases we first have to created the object that will contain the image:
UIImageView *imageView = [[UIImageView alloc] initWithFrame:CGRectMake(100, 200, 100, 100)];
Than we must set the actual image, by using the image property in case of UIImageView objects:
imageView.image = [UIImage imageNamed:@testImage];
And finally add that UI object to the main view:
[self.view addSubview:imageView];
iOS will take care of all the details, and will correctly load the corresponding image for the specific device.
Note that is now necessary to specify the .png or some other extension for the image. However, you can do that if you want, and youll get the same results.
For more details, please visit Apples Online Documentation at:
http://developer.apple.com/library/ios/#documentation/uikit/reference/UIImageView_Class/Reference/Reference.html How to programmatically set images in iOS](https://i.ytimg.com/vi/chdSH0XzQUQ/mqdefault.jpg)






