UNIX for Dummies Questions & Answers

Can somebody explain it to me that why wc gives more chars suppose
Ab.txt have two lines
qwer
qasd
then wc -c ab.txt will give 10.why not 8.okay may be it is taking count one for each line just in case but why echo "qwer"|wc -C gives 5.

Ok with \c it is returning 4.

What you dont notice is a newline character at the end of each line. Do a

Code:

od -c filename

and see. Similarly try

Code:

echo "qwer"|od -c

To avoid a newline at the end of echo, check this

Code:

echo "qwer\c" | wc -l

Hope that helps

yes i figured it out.Thanks for your reply.

What you found exactly?

What i found is echo put newline character at the end of string and which can be omitted by using \c escape sequence.
\c output string without newline character.
similar thing can be achieved by echo -n but i dont have echo with -n option.

ksh's echo, does not have a -n option. sh's echo and /usr/bin/echo only have a -n option if the SYSV3 environment variable is set.
/usr/ucb/echo has -n option.

If you are looking for a more portable method, perhaps use printf.
However, if you just want to find the size of a string, try ${#var}

Thanks Ygor.honestly i was not aware of ${#var}.