What is the meaning of 'errno'?

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When I'm trying to call execl(...), I keep getting an errno=2. What does it mean? 

May 20 in Linux Administration by Upasana
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1 answer to this question.

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you can retrieve a complete list of errno values on your system with the following:

cpp -dM /usr/include/errno.h | grep 'define E' | sort -n -k 3
answered May 20 by Shubham
• 13,290 points

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