In this article you will learn on how to create script which allows to create alerts when some directories have been deleted or some have been created after running script. This script has algorithm which is checking all directories 100 times.
#!/bin/bash # Compare two strings string1="jira" string2="09" string3="10" # array with created jira servers jiras=() # declare inital start here initial_start=true scanning=true total_jiras= # Specify the file name # Check if the file already exists if [ ! -e "alerts.txt" ]; then # Create the file only if it doesn't exist echo "Hello, this is some text." > "alerts.txt" echo "File created successfully." else echo "File already exists. Not overwriting." fi while [ scanning ]; do # this will return all jira dir where script has been executed # it should be executed inside ./docker : sudo bash ./docker/mswitala/crobjobs.sh dires=$(ls | grep "jira*") # Convert the space-separated list into an array IFS=$'\n' read -r -d '' -a sorted_array <<< "$dires" # test echo " first === scanning loop === " for item in "${sorted_array[@]}"; do counter2=10 counter=1 max=9 max2=99 #echo " just checking items in array : $item" #echo "count number : $counter" #checking dirs from 01 to 09 while [ "$counter" -le "$max" ]; do number=0 string=$string1$number$counter # echo " test checking string > $string" if [ "$item" == "$string" ]; then #echo " adding $item because it is equal to $string" jiras+=("$item") break #else #echo "The string $item is equal to $string" #echo " " fi ((counter++)) 45,1 31% done # chceking dirs from 10 to 99 while [ "$counter2" -le "$max2" ]; do string=$string1$counter2 #echo " test checking string > $string" if [ "$item" == "$string" ]; then # echo " adding $item because it is equal to $string" jiras+=("$item") break #else # echo "The string $item ise not equal to $string" fi ((counter2++)) done done # Check the number of items in the array # check now if all jira dirs have been collected if new have been created if $initial_start; then #test # save just ONCE how many jira dir there is now total_jiras="${#jiras[@]}" initial_start=false echo " total jiras as for now is equal to ===== > $total_jiras " fi current_jiras=${#jiras[@]} # create alerts here to notifty user if [ "$current_jiras" -gt "$total_jiras" ]; then current_date=$(date) echo "ALERT there has been created new jira server." echo "ALERT on $current_date there has been created new jira server. " >> "alerts.txt" break fi if [ "$current_jiras" -lt "$total_jiras" ]; then echo "ALERT some jira server has been deleted. " current_date=$(date) echo "ALERT some jira server has been deleted." echo "ALERT on $current_date ALERT some jira server has been deleted. " >> "alerts.txt" break fi unset jiras unset dires done