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Not exactly certain on what you mean, I agree with techmonk to use cut if you certain with the format is always the same.

Another way using sed, depends on what is your exact requirement.


$...

You may make use of the -printand -delete parameters? e.g.

[soliton@UAT:test]$ ls -1
s1*
s2*
test file
[soliton@UAT:test]$ find . -type f -name "* *" -print
./test file
[soliton@UAT:test]$...

Had a look at your question 1, will the following be sufficient for your requirement?

[soliton@UAT:test]$ cat test.txt
SELECT * FROM ABC;
grant ABC XXXXXX;
DELETE FROM ABC;
INESRT INTO ABC...

Try csplit?
[soliton@UAT:test]$ csplit test.txt "/As of/+1" {*}
36
52
51
0
[soliton@UAT:test]$ cat xx00
aaaaa
bbbbbbb
cccccccccc
As of 2013
[soliton@UAT:test]$ cat xx01
ddddddddd...

You may use paste and bc.


paste -sd+ test.txt | bc


Assuming you don't have any extra lines and all lines are numerics.