Shell - I have used Unix Shell Programming revised Edition by Kochan and
Wood extensively. It's really all I use for shell programming problems.
It's well-written and not a dry read.
Perl - most everyone I can think of will point you to the O'Reilly library
of Perl books, starting with Learning Perl (the 'Llama book'), then going
on to Programming Perl (the 'Camel book'). I have personally found
Orwant's 'Perl 5 Interactive Course: Certified Edition' to be excellent,
but I think it's out of print now. I think you can still get it on
amazon.com. Then comes 'Advanced Perl Programming', 'Programming the Perl
DBI', and 'Perl for Oracle DBAs' Quite the exhausting list. Fortunately,
you can get just the Llama & Camel books (optionally Orwant's book in place
of both), and the DBI book, and munge through publically available
examples, man pages, etc to get most of what you need.
Janardhana Babu Donga
<[EMAIL PROTECTED]> T
To: Multiple recipients of list
ORACLE-L <[EMAIL PROTECTED]>
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Subject:
RE: Programming languages
that make DBA's lives easier
02/18/2003 05:28 PM
Please respond to
ORACLE-L
What are the good books you guys recommend for Shell Programming? I have
old
edition of UNIX shells by example (by Ellie Quigley). I need to replace
this
with some good book.
Do I need to learn perl before reading PERL for DBAs? If so, what are the
good perl books do you guys recommend?
-- Babu
-----Original Message-----
Sent: Tuesday, February 18, 2003 1:04 PM
To: Multiple recipients of list ORACLE-L
I thought it might be worthwhile to say WHY I prefer ksh for most
scripting.
As one writer put it, use a language you know. I've used ksh for years, so
that is certainly one big factor in preferring it. But, that aside, if you
use mostly the Bourne Shell syntax and stay away from the some of the Korn
Shell syntactical candy that doesn't do anything extra, then your scripts
are very easy to read, and are mostly self-documenting. For me, that is a
big advantage.
If you use ksh, then you need to become reasonably proficient with a few of
the more important utilities such as sed and awk/nawk/gawk and become
familiar with good old regular expressions (wonderful stuff!).
One area where ksh is weak is its inability to set up a two-way socket with
a child process like sqlplus. Perl can do this (for example, by using
IPC::Open2). With ksh, you can send to the child, and you can receive from
the child, but you can't converse with the child. Even with the coprocess
(which is a pain to use), you still have one-way communication at any given
time. However, 99% of the time, ksh will work fine. For that other 1%
(OK,
maybe 2%), you either figure out a workable compromise with ksh, or you use
perl.
If you want some reading material, my recommendation is:
Unix System V: A Practical Guide
by Mark G. Sobel
(There is also a version for BSD)
This is a outstanding overview of Unix including sh, ksh, and csh
programming; as well as good introductions to sed, awk, and regular
expressions. It also has chapters on emacs and vi ("Remember, vi is your
friend."). Amazon has the 3rd edition listed with a publish date of 1995.
So there probably is some rather outdated info in the book on stuff like
gopher, archie, possibly Mosaic (Oh heeeeey, cool!). Just ignore this.
All
the other stuff is still completely relevant and presented in what I think
is the perfect level of detail -- not too verbose; not too terse -- with
good examples.
Eventually, to get seriously cooking with sed and awk, you will need to get
something like the O'Reilly sed and awk book. But, for ksh programming: If
you work through the Bourne Shell and Korn Shell chapters of the Sobel
book,
it is likely that this book is all you will ever need. Another wonderful
thing about this book is that it doesn't use the current trend of big fonts
with big margins and thick paper to create a monster sized book. Instead,
you get lots of information in a book that takes up little shelf space.
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