man pages section 1: User Commands
    
O
 
 object archive, find ordering relation for an object or library archive - lorder ( Index Term Link )
 
 object files
  find printable strings - strings ( Index Term Link )
  manipulate the comment section - mcs ( Index Term Link )
  print section sizes in bytes - size ( Index Term Link )
  strip symbol table, debugging and line number information - strip ( Index Term Link )
 
 octal dump, - od ( Index Term Link )
 
 od - octal dump ( Index Term Link )
 
 on - execute a command on a remote system, but with the local environment ( Index Term Link )
 
 onintr - shell built-in functions to respond to (hardware) signals ( Index Term Link )
 
 online documentation system, - answerbook2 ( Index Term Link )
 
 online reference pages - man ( Index Term Link )
 
 optisa - determine which variant instruction set is optimal to use ( Index Term Link )