The Linux command "man" displays manpages

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What do the parentheses and number after a Unix command or C function mean?

I keep seeing parentheses and a number after a command in Unix or Linux or C function. For example: man(8), ftok(2), mount(8), etc. What do these mean? I see them in man too.
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what does crypt(3) and whatnot mean [duplicate]

Possible Duplicate: What do the parentheses and number after a Linux command or C function mean? In Linux Manpages (http://linux.die.net/man/3/crypt) I often see sth like this: crypt(3), ...
1
vote
1answer
196 views

What are the numbers in parentheses in the names of unix tools? [duplicate]

Possible Duplicate: what does crypt(3) and whatnot mean I'm talking about, e.g. in the git Manual pages, on the git(1) page, See gittutorial(7) to get started, or git-add(1) ...
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Bash Man Page: kill <pid> vs kill -9 <pid>

My man page does not document the difference between kill <pid> and kill -9 <pid> Since these do different things why is the -9 not documented in the kill manpage? I thought maybe ...
1
vote
1answer
82 views

What are the numbers in some unix manuals refering to? [duplicate]

Possible Duplicate: What are the numbers in parentheses in the names of unix tools? Hello, what these numbers I see in manual pages for linux commands? See this gittutorial(7)[tutorial] to ...