03-27-2003
on HP-UX 11.0 you have $HOSTNAME by default..
you can do like this in the script if its not in the HOSTNAME variable...
the solution below is better because it will work on almost all unix systems...
MY_HOSTNAME=`hostname`
echo $MY_HOSTNAME
/Peter
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HOSTNAME(7) Miscellaneous Information Manual HOSTNAME(7)
NAME
hostname - host name resolution description
DESCRIPTION
Hostnames are domains, where a domain is a hierarchical, dot-separated list of subdomains; for example, the machine monet, in the Berkeley
subdomain of the EDU subdomain of the ARPANET would be represented as
monet.Berkeley.EDU
(with no trailing dot).
Hostnames are often used with network client and server programs, which must generally translate the name to an address for use. (This
function is generally performed by the library routine gethostbyname(3).) Hostnames are resolved by the internet name resolver in the fol-
lowing fashion.
If the name consists of a single component, i.e. contains no dot, and if the environment variable ``HOSTALIASES'' is set to the name of a
file, that file is searched for an string matching the input hostname. The file should consist of lines made up of two white-space sepa-
rated strings, the first of which is the hostname alias, and the second of which is the complete hostname to be substituted for that alias.
If a case-sensitive match is found between the hostname to be resolved and the first field of a line in the file, the substituted name is
looked up with no further processing.
If the input name ends with a trailing dot, the trailing dot is removed, and the remaining name is looked up with no further processing.
If the input name does not end with a trailing dot, it is looked up in the local domain and its parent domains until either a match is
found or fewer than 2 components of the local domain remain. For example, in the domain CS.Berkeley.EDU, the name lithium.CChem will be
checked first as lithium.CChem.CS.Berkeley.EDU and then as lithium.CChem.Berkeley.EDU. Lithium.CChem.EDU will not be tried, as the there
is only one component remaining from the local domain.
SEE ALSO
gethostbyname(3), resolver(5), mailaddr(7), named(8), RFC883
4.2 Berkeley Distribution November 21, 1987 HOSTNAME(7)