ABSTRACT
Of course the level of the required skills varies; it would be wrong to expect that an UNIX administrator (especially a successful one) has to graduate in each of the listed fields to be able to respond to all administrative demands. However, it is true that some of the required skills need more than just a basic knowledge; mostly these are strictly UNIX-related skills. Nobody can fight with UNIX administrative challenges without being familiar with the UNIX operating system, the UNIX commands and how to use them. An even deeper expertise in UNIX internals could be very instrumental in an easier UNIX administration. Script programming is another fighting arena. An average UNIX administration time consists of 75 to 80% of shell programming, and only the rest is a manual administration from the keyboard.
