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Truncate last 40 chars of every line in a file

Posted on 1998-12-02
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Last Modified: 2010-04-21
I am wondering if there is some function to turncate the last 40 chars of every line in a given file. And also, when I execute the system command like "system(". .profile");" in a C program, the profile is not executed.
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Question by:bujji120198
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ahoffmann earned 30 total points
ID: 2008182
awk '{l=length($0);if(l>40){print substr($0,1,l-40)}}' file

How do you proove that .profile was not executed?
I suggest adding following to your .profile:
echo "called at `date` by $user" > /tmp.profile

Then tell us what the error is, or what does not work.
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