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length function

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# 1  
Old 08-03-2007
length function
Hi,Smilie
can any body tell me what is the function to get the length of a string in unix?I have used functions like len,length,strlen, but they are not working.

cheers
RRK
# 2  
Old 08-03-2007
Code:
var="test";
echo "length = ${#var}";

# 3  
Old 08-03-2007
Code:
perl -e 'while (<>) { chomp; print length($_) . "\n" }' filename

Code:
awk '{ print length }' filename

# 4  
Old 08-03-2007
Another way
Code:
var="test"
echo $(($(echo $var| wc -c )-1))

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