man pages section 1: User Commands
    
H
 
 halt system without checking disks -- fasthalt ( Index Term Link )
 
 hash -- shell built-in functions to evaluate the internal hash table of the contents of directories ( Index Term Link )
 
 hashstat -- shell built-in functions to evaluate the internal hash table of the contents of directories ( Index Term Link )
 
 head - display first few lines of files ( Index Term Link )
 
 history -- shell built-in functions to re-use previous command-lines from the current shell ( Index Term Link )
 
 HOME variable -- sh ( Index Term Link )
 
 host machines, local
  show status - ruptime ( Index Term Link )
  who is logged in - rwho ( Index Term Link )
 
 host machines, remote
  display status of network hosts (RPC version) - rup ( Index Term Link )
  who is logged in - rusers ( Index Term Link )
 
 host resident PostScript font downloader - download ( Index Term Link )
 
 hostid - display host ID ( Index Term Link )
 
 hostname - display host name ( Index Term Link )