H

h2ph:- convert .h C header files to .ph Perl header files

halt:- halt, poweroff, reboot may be used to halt, power-off or reboot the machine.

hardlink:- Consolidate duplicate files via hardlinks

hash:-

hdsploader:-

head:- Print  the first 10 lines of each FILE to standard output.  With more than one FILE, precede each with a header giving the file name.  With no FILE, or when FILE is -, read standard input.

help:-

hesinfo:- find out what is stored in the Hesiod database

hexdump:- display file contents in ascii, decimal, hexadecimal, or octal

history:-

host:- is a simple utility for performing DNS lookups.

hostid:- print the numeric identifier for the current host

hostname:- hostname - show or set the system's host name

                    domainname - show or set the system's NIS/YP domain name

                    ypdomainname - show or set the system's NIS/YP domain name

                    nisdomainname - show or set the system's NIS/YP domain name

                    dnsdomainname - show the system's DNS domain name

hostnamectl:- may be used to query and change the system hostname and related settings.

hunspell:- spell checker, stemmer and morphological analyzer

hwclock:- query or set the hardware clock (RTC).