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Nitesh Chauhan nitesh8860

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nitesh8860 / elasticsearch-smtp.py
Last active May 23, 2021 03:41
this usecase is related to app logs where if some message fails trying multiple times, the script will identify that message and then collect all related logs to that error and send it to email.
'''
example data:
name: someText aFewMoreRandomThings aggregate_id: someNumber
if this error is found, the script will search for all related logs to this aggregate_id and the text Retries exceeded (RMQ specific).
script will then collect all this data and send it to email
error type: {}
aggregateid: {}\n
mq deadfinal log: \n{}
related log : \n{}
@nitesh8860
nitesh8860 / telnet_report.py
Last active May 23, 2021 06:22
script tests if there is a connection between source IP, dest IP and dest port. it requires a central server which is able to login to all source servers. (ansible master).
'''
Example format for sdp.csv file.
source,dest,port
10.0.x.x,10.0.x.y,80
10.0.x.x,10.0.x.y,800
'''
import csv
import base64
import paramiko
@nitesh8860
nitesh8860 / bash-special-variables.sh
Created February 13, 2020 04:08
#!/bin/bash
echo script name: $0
echo first argument: $1
echo number of arguments passed: $#
echo all the arguments are: $@
echo exit status of most recent process: $?
echo process id of the script: $$
echo username: $USER
echo hostname: $HOSTNAME
echo a random number: $RANDOM
@nitesh8860
nitesh8860 / bashnotesforprofessionals.bash
Last active February 27, 2020 13:32
# Note that spaces cannot be used around the `=` assignment operator
whom_variable="World"
# Use printf to safely output the data
printf "Hello, %s\n" "$whom_variable"
> Hello, World
#If you want to bash to expand your argument, you can use Weak Quoting:
#!/usr/bin/env bash
world="World"
@nitesh8860
nitesh8860 / print_column.sh
Last active May 23, 2021 03:28
#to print column number:
STDIN | awk '{print $COLUMN_NUMBER}'
@nitesh8860
nitesh8860 / addGitBranchNameToBash.sh
Created March 7, 2020 19:06
#add below to ~/.bashrc
force_color_prompt=yes
color_prompt=yes
parse_git_branch() {
git branch 2> /dev/null | sed -e '/^[^*]/d' -e 's/* \(.*\)/(\1)/'
}
if [ "$color_prompt" = yes ]; then
PS1='${debian_chroot:+($debian_chroot)}\[\033[01;32m\]\u@\h\[\033[00m\]:\[\033[01;34m\]\w\[\033[01;31m\]$(parse_git_branch)\[\033[00m\]\$ '
else
@nitesh8860
nitesh8860 / secondHighest.py
Created June 12, 2020 11:03
getting the second highest number in the list with help of filter in python
max_arr=max(arr)
arr=list(filter(lambda x: x!=max_arr, arr))
print(max(arr))
@nitesh8860
nitesh8860 / filterRegex.py
Created June 12, 2020 14:54
def fun(s):
# return True if s is a valid email, else return False
import re
rex = re.compile("^[\w\-\_]+\@[a-zA-Z0-9]+\.\w{1,3}$")
if rex.match(s):
return True
else:
return False
@nitesh8860
nitesh8860 / reduce.py
Created June 12, 2020 15:15
using reduce function
from functools import reduce
l=[1,2,3,4]
print(reduce(lambda x,y: x*y, l, -1))
#> -24
#reduce(func with 2 params, iterable, initial value )
@nitesh8860
nitesh8860 / datetimeDiff.py
Last active June 12, 2020 17:35
from datetime import datetime
t1='Sat 02 May 2015 19:54:36 +0530'
t2='Fri 01 May 2015 13:54:36 -0000'
t1=datetime.strptime(t1,'%a %d %b %Y %H:%M:%S %z')
t2=datetime.strptime(t2,'%a %d %b %Y %H:%M:%S %z')
# print(t1-t2)
#> 1 day, 0:30:00
print ((t1-t2).total_seconds())