TASK: Upload first set of scripts

10-header

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+#!/bin/bash
+# This script generates a ascii art heading
+figlet -f big "Title"

20-sysinfo

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+#!/bin/bash
+# This script prints basic system information
+# Most of the script was created by yboetz
+# https://github.com/yboetz/motd/blob/master/20-sysinfo
+
+# get load averages
+IFS=" " read LOAD1 LOAD5 LOAD15 <<<$(cat /proc/loadavg | awk '{ print $1,$2,$3 }')
+# get free memory
+IFS=" " read USED FREE TOTAL <<<$(free -htm | grep "Mem" | awk {'print $3,$4,$2'})
+# get processes
+PROCESS=`ps -eo user=|sort|uniq -c | awk '{ print $2 " " $1 }'`
+PROCESS_ALL=`echo "$PROCESS"| awk {'print $2'} | awk '{ SUM += $1} END { print SUM }'`
+PROCESS_ROOT=`echo "$PROCESS"| grep root | awk {'print $2'}`
+PROCESS_USER=`echo "$PROCESS"| grep -v root | awk {'print $2'} | awk '{ SUM += $1} END { print SUM }'`
+# get processors
+PROCESSOR_NAME=`grep "model name" /proc/cpuinfo | cut -d ' ' -f3- | awk {'print $0'} | head -1`
+PROCESSOR_COUNT=`grep -ioP 'processor\t:' /proc/cpuinfo | wc -l`
+
+W="\e[0;39m"
+G="\e[1;32m"
+
+echo -e "
+${W}system info:
+$W  Distro......: $W`cat /etc/*release | grep "PRETTY_NAME" | cut -d "=" -f 2- | sed 's/"//g'`
+$W  Kernel......: $W`uname -sr` `uname -v | sed -e 's/^.*(/(/'`
+
+$W  Uptime......: $W`uptime -p`
+$W  Current time: $W`date`
+$W  Load........: $G$LOAD1$W (1m), $G$LOAD5$W (5m), $G$LOAD15$W (15m)
+$W  Processes...:$W $G$PROCESS_ROOT$W (root), $G$PROCESS_USER$W (user), $G$PROCESS_ALL$W (total)
+$W  Online users: $W`who|wc -l`
+
+$W  CPU.........: $W$PROCESSOR_NAME ($G$PROCESSOR_COUNT$W vCPU)
+$W  Memory......: $G$USED$W used, $G$FREE$W free, $G$TOTAL$W total$W"
+

30-diskspace

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+#!/bin/bash
+# This script displays the usage of specified disks
+# Base version used for this script: https://github.com/Heholord/FalconStats/blob/master/scripts/discspace.sh
+
+
+clear="\e[39\e[0m"
+dim="\e[2m"
+
+# The parameter maxDiskUsage indicates when the bar should be displayed as red
+maxDiskUsage=80
+
+# The parameter barWidth indicates how long the disk usage bar should be
+barWidth=50
+
+# mountpoints contains all the directories which devices should be monitored
+# Examples: mountpoints="/ /boot /home" - this will monitor the devices mounted 
+mountpoints="/"
+
+# Make space above
+echo ""
+echo "disk usage:"
+
+for point in ${mountpoints}; do
+    # Get the output of df and add spaces after the newlines
+    line=$(df -hl "${point}"|sed -e ':a;N;$!ba;s/\n/\n  /g')
+    usagePercent=$(echo "$line"|tail -n1|awk '{print $5;}'|sed 's/%//')
+    usedBarWidth=$((($usagePercent*$barWidth)/100))
+    barContent=""
+    color="\e[32m"
+
+    # Color the bar red in case it's bigger than the speicified value
+    if [ "${usagePercent}" -ge "${maxDiskUsage}" ]; then
+        color="\e[31m"
+    fi
+    barContent="${color}"
+
+    # Build the usage bar
+    for sep in $(seq 1 $usedBarWidth); do
+        barContent="${barContent}="
+    done
+
+    # Rest of the unused space in white
+    barContent="${barContent}${clear}${dim}"
+    for sep in $(seq 1 $(($barWidth-$usedBarWidth))); do
+        barContent="${barContent}="
+    done
+    bar="[${barContent}${clear}]"
+
+    # Print the column/title bar
+    if [ "${titeled}" == "" ]; then
+        echo "  ${line}"
+        titeled="1"
+    else
+        echo "  ${line}"|tail -n1
+    fi
+    echo -e "  ${bar}"
+done
+

40-services

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+#!/bin/bash
+# This script displays the status of a list of specified services
+# Base version used for this script: https://github.com/yboetz/motd/blob/master/40-services
+
+
+# set column width
+COLUMNS=3
+# colors
+green="\e[1;32m"
+red="\e[1;31m"
+undim="\e[0m"
+
+services=("fail2ban" "ufw" "docker" "apache2")
+# sort services
+IFS=$'\n' services=($(sort <<<"${services[*]}"))
+unset IFS
+
+service_status=()
+# get status of all services
+for service in "${services[@]}"; do
+    service_status+=($(systemctl is-active "$service"))
+done
+
+out=""
+for i in ${!services[@]}; do
+    # color green if service is active, else red
+    if [[ "${service_status[$i]}" == "active" ]]; then
+        out+="${services[$i]}:,${green}${service_status[$i]}${undim},"
+    else
+        out+="${services[$i]}:,${red}${service_status[$i]}${undim},"
+    fi
+    # insert \n every $COLUMNS column
+    if [ $((($i+1) % $COLUMNS)) -eq 0 ]; then
+        out+="\n"
+    fi
+done
+out+="\n"
+
+printf "\nservices:\n"
+printf "$out" | column -ts $',' | sed -e 's/^/  /'
+

50-fail2ban

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+#!/bin/bash
+# This script lists all bans and unbans from fail2ban
+# It sometimes is not very accurate in calculating the still active bans
+# Taken from: https://github.com/yboetz/motd/blob/master/50-fail2ban
+
+logfile='/var/log/fail2ban.log*'
+mapfile -t lines < <(grep -hioP '(\[[a-z-]+\]) (ban|unban)' $logfile | sort | uniq -c)
+jails=($(printf -- '%s\n' "${lines[@]}" | grep -oP '\[\K[^\]]+' | sort | uniq))
+
+out=""
+for jail in ${jails[@]}; do
+    bans=$(printf -- '%s\n' "${lines[@]}" | grep -iP "[[:digit:]]+ \[$jail\] ban" | awk '{print $1}')
+    unbans=$(printf -- '%s\n' "${lines[@]}" | grep -iP "[[:digit:]]+ \[$jail\] unban" | awk '{print $1}')
+    bans=${bans:-0} # default value
+    unbans=${unbans:-0} # default value
+    diff=$(($bans-$unbans))
+    out+=$(printf "$jail, %+3s bans, %+3s unbans, %+3s active" $bans $unbans $diff)"\n"
+done
+
+printf "\nfail2ban status (monthly):\n"
+printf "$out" | column -ts $',' | sed -e 's/^/  /'
+

60-docker

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+#!/bin/bash
+# This script lists all docker containers and their status
+# Taken from https://github.com/yboetz/motd/blob/master/60-docker
+
+# set column width
+COLUMNS=2
+# colors
+green="\e[1;32m"
+red="\e[1;31m"
+undim="\e[0m"
+
+mapfile -t containers < <(docker ps -a --format '{{.Names}}\t{{.Status}}' | awk '{ print $1,$2 }')
+
+out=""
+for i in "${!containers[@]}"; do
+    IFS=" " read name status <<< ${containers[i]}
+    # color green if service is active, else red
+    if [[ "${status}" == "Up" ]]; then
+        out+="${name}:,${green}${status,,}${undim},"
+    else
+        out+="${name}:,${red}${status,,}${undim},"
+    fi
+    # insert \n every $COLUMNS column
+    if [ $((($i+1) % $COLUMNS)) -eq 0 ]; then
+        out+="\n"
+    fi
+done
+out+="\n\n"
+
+printf "\ndocker status:\n"
+printf "$out" | column -ts $',' | sed -e 's/^/  /'
+

80-loggedinusers

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+#!/bin/bash
+# This scripts prints out all logged in users
+
+echo ""
+echo "logged in users:"
+echo "  $(who|sed -e ':a;N;$!ba;s/\n/\n  /g')"
+echo ""
+