... attempts to keep track of changes in individual systems using a method of revision control. A typicalUnix system might consist of thousands of files comprising software and data.All of the files (except ... automating system administration have been reported; seerefs. [138, 114, 180, 194 , 21, 191 , 10, 116, 2 59, 113, 84, 258, 2 49, 76, 2 29, 217, 92 , 145, 173]. Most of these have been ways of generating ... freak coincidence of humansocial structures; it is a property of a kind of network known as a small-world network [3 19] .Definition 6 (Small-world network) . There is a class of highly clustered...