With today's hardware and chips, 90% of the time, interpreted unix
scripts will perform as efficiently as code written in higher level
languages - such as java. The difference is that, with unix
scripts, you cut out about 80-90% of the lines of code, and have
something that can easily be maintained and supported. Even if you
still want to code in a higher level language, unix shell scripting
is invaluable for support functions - such as moving around files,
parsing log files, etc. An analyst or support person who uses the
topics and examples in this book to master scripting can save him
or herself literally hundreds of hours - especially when dealing
with repetitive tasks with many lines of data.
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