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   "http://www.w3.org/TR/xhtml1/DTD/xhtml1-strict.dtd">
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<html>
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<meta http-equiv="Content-Type" content="text/html; charset=UTF-8"/>
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<head>
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    <title>luaposix 33.3.0 Reference</title>
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    <link rel="stylesheet" href="../ldoc.css" type="text/css" />
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</head>
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<body>
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luaposix 33.3.0
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  • Index
    		•
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    Contents
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    • Functions
      		•
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    • Tables
      		•
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      Modules
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      • posix
        		•
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      • posix.ctype
        		•
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      • posix.curses
        		•
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      • posix.dirent
        		•
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      • posix.errno
        		•
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      • posix.fcntl
        		•
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      • posix.fnmatch
        		•
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      • posix.getopt
        		•
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      • posix.glob
        		•
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      • posix.grp
        		•
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      • posix.libgen
        		•
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      • posix.poll
        		•
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      • posix.pwd
        		•
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      • posix.sched
        		•
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      • posix.signal
        		•
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      • posix.stdio
        		•
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      • posix.stdlib
        		•
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      • posix.sys.msg
        		•
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      • posix.sys.resource
        		•
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      • posix.sys.socket
        		•
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      • posix.sys.stat
        		•
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      • posix.sys.statvfs
        		•
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      • posix.sys.time
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      • posix.sys.times
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      • posix.sys.utsname
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      • posix.sys.wait
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      • posix.syslog
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      • posix.termio
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      • posix.time
        		•
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      • posix.unistd
        		•
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      • posix.utime
        		•
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        Classes
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        • posix.curses.chstr
          		•
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        • posix.curses.window
          		•
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          Examples
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          • curses.lua
            		•
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          • dir.lua
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          • fork.lua
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          • fork2.lua
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          • getopt.lua
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          • glob.lua
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          • limit.lua
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          • lock.lua
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          • netlink-uevent.lua
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          • ping.lua
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          • poll.lua
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          • rt_sched.lua
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          • signal.lua
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          • socket.lua
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          • termios.lua
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          • tree.lua
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            Module posix.grp
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            Group Database Operations.
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             Query the system group database.
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            Functions
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            	endgrent ()
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            	Release group database resources.
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            	getgrent ()
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            	Fetch next group.
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            	getgrgid (gid)
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            	Fetch group with given group id.
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            	getgrnam (name)
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            	Fetch named group.
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            	setgrent ()
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            	Rewind next getgrent back to start of database.
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            	PosixGroup
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            	Group record.
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            Functions
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                endgrent ()
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                Release group database resources.
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                       getgrent
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                  getgrent ()
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                  Fetch next group.
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              Returns:
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                           PosixGroup
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                        next group record
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                           endgrent
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                  Usage:
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                      t = P.getgrent ()
                    		

                    

                    
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                      while t ~= nil do
                    		

                    

                    
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                        process (t)
                    		

                    

                    
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                        t = P.getgrent ()
                    		

                    

                    
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                      end
                    		

                    

                    
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                      P.endgrent ()
                    		

                    

                    
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                        getgrgid (gid)
                    		

                    

                    
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                        Fetch group with given group id.
                    		

                    

                    
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                    Parameters:
                    		

                    

                    
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                    • gid
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                                  int
                      		

                      

                      
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                               group id
                      		

                      

                      
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                      Returns:
                      		

                      

                      
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                                   PosixGroup
                        		

                        

                        
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                                group record for gid
                        		

                        

                        
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                        Usage:
                        		

                        

                        
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                          t = P.getgrgid (0)
                          		

                          

                          
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                              getgrnam (name)
                          		

                          

                          
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                              Fetch named group.
                          		

                          

                          
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                          Parameters:
                          		

                          

                          
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                          • name
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                                        string
                            		

                            

                            
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                                     group name
                            		

                            

                            
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                            Returns:
                            		

                            

                            
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                                         PosixGroup
                              		

                              

                              
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                                      group record for name
                              		

                              

                              
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                              Usage:
                              		

                              

                              
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                                t = P.getgrnam "wheel"
                                		

                                

                                
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                                    setgrent ()
                                		

                                

                                
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                                    Rewind next getgrent back to start of database.
                                		

                                

                                
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                                See also:
                                		

                                

                                
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                                           getgrent
                                  		

                                  

                                  
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                                  Tables
                                  		

                                  

                                  
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                                      PosixGroup
                                  		

                                  

                                  
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                                      Group record.
                                  		

                                  

                                  
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                                  Fields:
                                  		

                                  

                                  
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                                  • gr_mem
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                                                list
                                    		

                                    

                                    
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                                             a list of group members
                                    		

                                    

                                    
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                                  • gr_name
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                                                string
                                    		

                                    

                                    
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                                             name of group
                                    		

                                    

                                    
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                                  • gr_gid
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                                                int
                                    		

                                    

                                    
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                                             unique group id
                                    		

                                    

                                    
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                                    generated by LDoc 1.4.3
                                    		

                                    

                                    
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                                    Last updated 2015-03-01 09:06:02 
                                    		

                                    

                                    
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                                    </body>
                                    		

                                    

                                    
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                                    </html>
                                    		

                                    

                                    
  
                                    
 
                                     



                                    
    
                                    

        
                                    
        
                                    
            
                                    
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