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Calculate byte size of string

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# 1  
Old 03-17-2012
Calculate byte size of string
Hi,

I have task to merge multiple XML's to one big XML.
In doing this i have to calculate the byte size of each XML which i will be recieving as a string from a code and append all the recieved XML's to single file.

The reason being the byte size and the offset will help me to extract only the XML i require from the large file.

How can i do this ?

Thanks,
Chetan
# 2  
Old 03-17-2012
wc
Hi,
Try this,
Code:
echo $str | wc -c

Cheers,
Ranga:-)
# 3  
Old 03-17-2012
Better use double quotes or spaces get squeezed and use:
Code:
printf "%s" "$str" | wc -c

or the newline introduced by echo gets counted too..
This User Gave Thanks to Scrutinizer For This Post:
clx
# 4  
Old 03-19-2012
Hi ,
Thanks for the reply.

The reason i want the byte size is to know how many bytes an XML can take.
In case the XML will have " i will have to escape it.

In that case will the byte size include the "\" which i'm using to escape "?

Thanks.
# 5  
Old 03-19-2012
You don't need to escape " for the wc -c command. If the " is needed in the XML then the \ is part of the XML and it should be counted, no?
# 6  
Old 03-19-2012
Hi,

I need the " inside the XML so \ will also be counted to give the byte size then right?
Currently in the XML we recieve \ is not a part of it so we have to \ explicitly.


Thanks,
Chetan.C
# 7  
Old 03-19-2012
Why do you need to escape the double quote? If it is inside the string than that should not be necessary, I would think. Have you tried it without the \ . What error message did you get and could you show us what you were trying?
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