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.
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#!/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 |