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Help to find length of string avoiding trailing spaces

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# 1  
Old 12-06-2012
Help to find length of string avoiding trailing spaces
Hi,
I have a record of length 200 bytes and values filled is only 100 bytes and remaining 100 spaces is occupied by spaces. In script wen i try to find the length of the entire record it should get as 200 not 100. i tried using length and wc -c but it doesnt work can anyone have any idea on this???
Tis was the code i tried:-
Code:
cat RPCSFILE.txt | grep '^D' | while read LINE
do
expr length '$LINE' | read LEN
if [$LEN -ne 200]; then 
echo "Incorrect line"
fi
done

RPCSFILE.txt (3.7 KB) 
Last edited by Pranaveen; 12-06-2012 at 08:35 AM.. Reason: missed to add file; mod: added code tags
# 2  
Old 12-06-2012
What about using awk..?

Code:
awk 'length($0) < 200' file

# 3  
Old 12-06-2012
In shell to preserve spaces, unset IFS, for example:
Code:
while IFS= read LINE


Depending on your type of input, you may also need to switch off backslash interpretation with the -r option:
Code:
while IFS= read -r LINE

# 4  
Old 12-06-2012
Code:
awk '/^D/ && length<200' RPCSFILE.txt

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