variables

data types

conditions

functions

loops

plain server --> app runtime(nodejs), create user, create app folder, download the code, install dependencies, create systemctl services, start the application

check user has root access or not

store logs

try to use colors

install mysql server

enable it

start it

set the root password

idempotency --> even you run any number of times, it should not change the result

HTTP GET --> idempotent

HTTP POST --> chance of duplicates or errors, we need to handle this in programming

HTTP PUT --> no problem, but we can say it is already updated

HTTP DELETE --> chance of error, resource not found. Handle this in scripting/programming

deployment --> updating new version

remove old code

download new code

install dependencies

restart the server --> stop and start

delete old logs in linux server

-------------------------------

14 days log files --> will be in server

archive and move to storage servers

delete files older than 14 days from now

only delete .log files

#!/usr/bin/bash

file=temp.txt

while read -r line;

do

echo $line

done < “$file”

1. read the file

2. count the number of words

3. find top 5