Public bug reported:
In the dash shell, the environment variable HOSTNAME is not set. For
example, the script
#! /bin/sh
echo ${HOSTNAME}
will correctly return the hostname of the machine if /bin/sh is linked
to bash, but not if it is linked to dash.
This causes some scripts which rely on HOSTNAME to fail (see also Bug
#61463). For example, the sample scripts that appear in the man page of
keychain all rely on HOSTNAME.
** Affects: dash (Ubuntu)
Importance: Undecided
Status: Unconfirmed
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HOSTNAME not set
https://launchpad.net/bugs/64184
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