Manpages for Linux Development
This year I’m taking a course in Operating Systems, and it looks like I’m loving this area. I’m going to post here problems I face during the course, and their solutions, so I can find them easily next time I need them. As a side effect, I’ll be sharing them with the world. 
The first problem I faced is with the manpages: Sections 2 and 3 of the man pages are necessary for development on Linux: Section 2 is about system calls, and section 3 is about library calls. These two sections do not come with the default Ubuntu installation (after all, Ububtu is for human beings!). So I was surprised when I typed “man 2 sigaction” and got this message:
No manual entry for sigaction in section 2
After some investigation/googling I found the problem: I don’t have section 2 and section 3 in my Ubuntu. These sections are available in the “manpages-dev” package. So, to install them one should type this in terminal:
sudo apt-get install manpages-dev
That’s all. Now I have sections 2 and 3 and I’m happy. 
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About Me
My name is Amir Watad. I have a BSc. in biomedical engineering from The Biomedical Engineering school , Technion , Israel, and a BSc. in electrical engineering from The Electrical Engineering school , Technion , Israel.
I'm a Verification Engineer in Mellanox Technologies Ltd.
I love Linux, the Command Line and the OpenSource Community.
I used to write Poems (Arabic) when I was able to find time for this.
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