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# 15  
Old 11-08-2005
Quote:
Originally Posted by ericelysia
Is there a way to use the record number that is input by the user?
I initially was thinking:
Code:
sed -n -e '1,${number - 1}p' phonebook > tmp

But I am thinking this works like C++ or Java. I assume this is not right, because I do not see any arithmetic commands in this book that I have.
Thanks,
Eric
Why dont you calculate the new number outside the sed script.

Code:
NUM=$(($number-1))
sed -n -e "1,${NUM}p" phonebook > tmp

Havn't tested it tho'.
# 16  
Old 11-08-2005
I haven't learned anything about calculating with UNIX.

I will give it a go and let you know.

Thanks,
Eric
 
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