man pages section 2: System Calls
    
A
 
 access -- determine accessibility of a file ( Index Term Link )
 
 access permission mode of file, change -- chmod ( Index Term Link )
 
 accounting, enable or disable process accounting -- acct ( Index Term Link )
 
 acct -- enable or disable process accounting ( Index Term Link )
 
 acl -- get or set a file's Access Control List (ACL) ( Index Term Link )
 
 adjtime -- correct the time to allow synchronization of the system clock ( Index Term Link )
 
 adjust local clock parameters -- ntp_adjtime ( Index Term Link )
 
 alarm -- schedule an alarm signal ( Index Term Link )
 
 audit -- write an audit record ( Index Term Link )
 
 auditon -- manipulate auditing ( Index Term Link )
 
 auditsvc() function ( Index Term Link )