View file File name : hostname Content :#!/bin/sh -e # # hostname: report a host's name # # Copyright (C) 2008-2011 Canonical Ltd. # Copyright (C) 2011-2014 Dustin Kirkland # # Authors: Dustin Kirkland <kirkland@byobu.org> # # This program is free software: you can redistribute it and/or modify # it under the terms of the GNU General Public License as published by # the Free Software Foundation, version 3 of the License. # # This program is distributed in the hope that it will be useful, # but WITHOUT ANY WARRANTY; without even the implied warranty of # MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the # GNU General Public License for more details. # # You should have received a copy of the GNU General Public License # along with this program. If not, see <http://www.gnu.org/licenses/>. __hostname_detail() { hostname -f 2>/dev/null } __hostname() { local h= if eval $BYOBU_TEST hostname >/dev/null 2>&1; then h=$(hostname -s 2>/dev/null || hostname) elif [ -r /proc/sys/kernel/hostname ]; then read h < /proc/sys/kernel/hostname fi if metadata_available; then local cache="$BYOBU_RUN_DIR/cache.$BYOBU_BACKEND/hostname" # Background a retrieval of our public hostname timeout 0.2 wget -q -O- http://169.254.169.254/latest/meta-data/public-hostname </dev/null >"$cache" 2>/dev/null & sleep 0.02 [ -s "$cache" ] && read h < "$cache" fi [ -n "$h" ] || return color bold2; printf "%s" "$h"; color -- } # vi: syntax=sh ts=4 noexpandtab