From 0c69304d60e329a700effda62f0aad05eb6f1df2 Mon Sep 17 00:00:00 2001 From: Christoph Date: Fri, 1 Jun 2018 03:06:44 +0200 Subject: [PATCH] Add script 'pcs_online.sh'. --- conf/pcs_online.conf.sample | 39 ++++++ pcs_online.sh | 262 ++++++++++++++++++++++++++++++++++++ 2 files changed, 301 insertions(+) create mode 100644 conf/pcs_online.conf.sample create mode 100755 pcs_online.sh diff --git a/conf/pcs_online.conf.sample b/conf/pcs_online.conf.sample new file mode 100644 index 0000000..7f6cb28 --- /dev/null +++ b/conf/pcs_online.conf.sample @@ -0,0 +1,39 @@ +# ----------------------------------- +# - Settings for script pcs_online.sh +# ----------------------------------- + +# - LOCAL_DOMAIN +# - +# - Example: +# - LOCAL_DOMAIN="sprachenateliern.netz" +# - +LOCAL_DOMAIN="" + + +# - HOSTNAME_PREFIX +# - +# - Example: +# - HOSTNAME_PREFIX="cl" +# - +HOSTNAME_PREFIX="" + +# - FIRST_PC_NUM +# - +# - Example: +# - FIRST_PC_NUM=101 +# - +LAST_PC_NUM="" + +# - FIRST_PC_NUM +# - +# - Example: +# - LAST_PC_NUM=109 +# - +LAST_PC_NUM="" + +# - PC_NUMBERS_PRESENT +# - +# - Example: +# - PC_NUMBERS_PRESENT="101 102 103 104 105 106 107 109" +# - +PC_NUMBERS_PRESENT="" diff --git a/pcs_online.sh b/pcs_online.sh new file mode 100755 index 0000000..d4178b0 --- /dev/null +++ b/pcs_online.sh @@ -0,0 +1,262 @@ +#!/usr/bin/env bash + +script_name="$(basename $(realpath $0))" +working_dir="$(dirname $(realpath $0))" + +conf_file="${working_dir}/conf/${script_name%%.*}.conf" + + +# ---------- +# Base Function(s) +# ---------- +clean_up() { + + # Perform program exit housekeeping + rm -rf "$LOCK_DIR" + blank_line + exit $1 +} + + +echononl(){ + if $terminal ; then + echo X\\c > /tmp/shprompt$$ + if [ `wc -c /tmp/shprompt$$ | awk '{print $1}'` -eq 1 ]; then + echo -e -n " $*\\c" 1>&2 + else + echo -e -n " $*" 1>&2 + fi + rm /tmp/shprompt$$ + fi +} + + +fatal(){ + echo "" + if $terminal ; then + echo -e " [ \033[31m\033[1mFatal\033[m ] $*" + else + echo -e " [ Fatal ] $*" + fi + echo "" + if $terminal ; then + echo -e " \033[1mScript terminated\033[m.." + else + echo -e " Script terminated.." + fi + echo "" + rm -rf $LOCK_DIR + exit 1 +} + +error (){ + echo "" + if $terminal ; then + echo -e " [ \033[31m\033[1mError\033[m ] $*" + else + echo " [ Error ] $*" + fi + echo "" +} + +warn (){ + if $LOGGING || $terminal ; then + echo "" + if $terminal ; then + echo -e " [ \033[33m\033[1mWarn\033[m ] $*" + else + echo " [ Warn ] $*" + fi + echo "" + fi +} + +info (){ + if $LOGGING || $terminal ; then + echo "" + if $terminal ; then + echo -e " [ \033[32m\033[1mInfo\033[m ] $*" + else + echo " [ Info ] $*" + fi + echo "" + fi +} + +ok (){ + if $LOGGING || $terminal ; then + echo "" + if $terminal ; then + echo -e " [ \033[32m\033[1mOk\033[m ] $*" + else + echo " [ Ok ] $*" + fi + echo "" + fi +} + +echo_done() { + if $terminal ; then + echo -e "\033[75G[ \033[32mdone\033[m ]" + fi +} +echo_ok() { + if $terminal ; then + echo -e "\033[75G[ \033[32mok\033[m ]" + fi +} +echo_failed(){ + if $terminal ; then + echo -e "\033[75G[ \033[1;31mfailed\033[m ]" + fi +} +echo_skipped() { + if $terminal ; then + echo -e "\033[75G[ \033[33m\033[1mskipped\033[m ]" + fi +} + +trim() { + local var="$*" + var="${var#"${var%%[![:space:]]*}"}" # remove leading whitespace characters + var="${var%"${var##*[![:space:]]}"}" # remove trailing whitespace characters + echo -n "$var" +} + +blank_line() { + if $terminal ; then + echo "" + fi +} + +is_number() { + + return $(test ! -z "${1##*[!0-9]*}" > /dev/null 2>&1); + + # - also possible + # - + #[[ ! -z "${1##*[!0-9]*}" ]] && return 0 || return 1 + #return $([[ ! -z "${1##*[!0-9]*}" ]]) +} + +## - Check if a given array (parameter 2) contains a given string (parameter 1) +## - +containsElement () { + local e + for e in "${@:2}"; do [[ "$e" == "$1" ]] && return 0; done + return 1 +} + + + + +# ---------- +# - Jobhandling +# ---------- + +# - Run 'clean_up' for signals SIGHUP SIGINT SIGTERM +# - +trap clean_up SIGHUP SIGINT SIGTERM + +# - Create lock directory '$LOCK_DIR" +# +mkdir "$LOCK_DIR" + + +# ---------- +# - Some checks .. +# ---------- + +# - Running in a terminal? +# - +if [[ -t 1 ]] ; then + terminal=true +else + terminal=false +fi + + +# ========== +# - Begin Main Script +# ========== + +# ---------- +# - Headline +# ---------- + +if $terminal ; then + echo "" + echo -e "\033[1m----------\033[m" + echo -e "\033[32m\033[1mRunning script \033[m\033[1m$script_name\033[32m .. \033[m" + echo -e "\033[1m----------\033[m" +fi + + +# ---------- +# Read Configurations from $conf_file +# ---------- + +if [[ -f "$conf_file" ]]; then + source "$conf_file" +else + fatal "No configuration file '$conf_file' present!" +fi + +if [[ -z "$LOCAL_DOMAIN" ]] ; then + fatal "Local domain (Variable 'LOCAL_DOMAIN') not given!" +fi + +if [[ -z "$HOSTNAME_PREFIX" ]] ; then + fatal "Hostname prefix not given. (Variable 'HOSTNAME_PREFIX')" +fi + +if [[ -z "$FIRST_PC_NUM" ]] ; then + fatal "First PC number not given (Variable 'FIRST_PC_NUM')" +fi + +if [[ -z "$LAST_PC_NUM" ]] ; then + fatal "Last PC number not given (Variable 'LAST_PC_NUM')" +fi + +declare -a pc_numbers_arr=() +if [[ -n "$PC_NUMBERS_PRESENT" ]] ; then + for _number in $PC_NUMBERS_PRESENT ; do + if is_number $_number ; then + pc_numbers_arr+=($_number) + fi + done +fi + + + +declare -i nr=$FIRST_PC_NUM +blank_line +while [[ $nr -le $LAST_PC_NUM ]] ; do + if [[ ${#pc_numbers_arr[@]} -gt 0 ]] ; then + if ! containsElement $nr ${pc_numbers_arr[@]} ; then + let nr++ + continue + fi + fi + + ping -n -c 2 -q ${HOSTNAME_PREFIX}${nr}.$LOCAL_DOMAIN > /dev/null 2>&1 + if [[ $? -eq 0 ]]; then + if $terminal ; then + echo -e "\t${HOSTNAME_PREFIX}${nr}.${LOCAL_DOMAIN}: \033[32m\033[1monline\033[m" + else + echo " ${HOSTNAME_PREFIX}${nr}.${LOCAL_DOMAIN}: online" + fi + else + if $terminal ; then + echo -e "\t${HOSTNAME_PREFIX}${nr}.${LOCAL_DOMAIN}: \033[31m\033[1moffline\033[m" + else + echo " ${HOSTNAME_PREFIX}${nr}.${LOCAL_DOMAIN}: offline" + fi + fi + + let nr++ + +done + +blank_line +clean_up 0