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@sebsto
sebsto / gist:468670c7c0d5feeade69
Created March 20, 2015 07:53
AWS CLI : discover your service limits from the command line
aws support describe-trusted-advisor-check-result --check-id eW7HH0l7J9 --query 'result.sort_by(flaggedResources[?status!="ok"],&metadata[2])[].metadata' --output table --region us-east-1
@j1n6
j1n6 / restore_glacier_to_s3.sh
Created March 23, 2015 14:56
recursively restore glacier file for a path
# You might get a couple of errors:
# 1. This is not Glacier type
# Restore is not allowed, as object's storage class is not GLACIER
# 2. Already requested
# Object restore is already in progress
# 3. This is a path object
# The specified key does not exist.
for key in `aws s3 ls --recursive s3://{BUCKET}/{PATH} | awk '{ print $4}'` ; do echo "==> $key"; aws s3api restore-object --bucket {BUCKET} --key $key --restore-request '{"Days": 1}' ; done

progrium/bashstyle

Bash is the JavaScript of systems programming. Although in some cases it's better to use a systems language like C or Go, Bash is an ideal systems language for smaller POSIX-oriented or command line tasks. Here's three quick reasons why:

  • It's everywhere. Like JavaScript for the web, Bash is already there ready for systems programming.
  • It's neutral. Unlike Ruby, Python, JavaScript, or PHP, Bash offends equally across all communities. ;)
  • It's made to be glue. Write complex parts in C or Go (or whatever!), and glue them together with Bash.

This document is how I write Bash and how I'd like collaborators to write Bash with me in my open source projects. It's based on a lot of experience and time collecting best practices. Most of them come from these two articles, but here integrated, slightly modified, and focusing on the most bang for buck items. Plus some ne

@gene1wood
gene1wood / all_aws_lambda_modules_python.md
Last active June 27, 2026 11:20
AWS Lambda function to list all available Python modules for Python 2.7 3.6 and 3.7
@uglide
uglide / chroot.sh
Last active January 13, 2026 20:11
Chroot to Installed system on LVM
#!/bin/bash
fdisk -lu
pvscan
vgscan
vgchange -a y
lvscan
mount /dev/ubuntu-vg/root /mnt
mount --bind /dev /mnt/dev
mount --bind /proc /mnt/proc
@mlapida
mlapida / EC2-Tag-Assets-Lambda.py
Last active January 17, 2024 08:10
A lambda function that will copy EC2 tags to all related Volumes and Network Interfaces. A full writeup can be found on my site https://empty.coffee/tagging-and-snapshotting-with-lambda/ - Thank you to the community for keeping this updated!
from __future__ import print_function
import json
import boto3
import logging
#setup simple logging for INFO
logger = logging.getLogger()
logger.setLevel(logging.ERROR)
from botocore.credentials import RefreshableCredentials
from botocore.session import get_session
from boto3 import Session
def assumed_session(role_arn, session_name, session=None):
"""STS Role assume a boto3.Session
With automatic credential renewal.
@p3t3r67x0
p3t3r67x0 / openssl_commands.md
Last active May 15, 2025 17:31
Some list of openssl commands for check and verify your keys

openssl

Install

Install the OpenSSL on Debian based systems

sudo apt-get install openssl
@trestletech
trestletech / instance-types.sh
Created June 15, 2016 16:41
Get all EC2 Instance Types in All Availability Zones
#!/bin/bash
echo "Getting list of Availability Zones"
all_regions=$(aws ec2 describe-regions --output text --query 'Regions[*].[RegionName]' | sort)
all_az=()
while read -r region; do
az_per_region=$(aws ec2 describe-availability-zones --region $region --query 'AvailabilityZones[*].[ZoneName]' --output text | sort)
while read -r az; do
@kdabir
kdabir / heredoc_json.bash
Last active January 11, 2024 02:25
json in heredoc in bash script alongwith variable substitution
_BUCKET_NAME="foo.example.com"
_POLICY=$(cat <<EOT
{
"Version":"2012-10-17",
"Statement":[{
"Sid":"PublicReadForGetBucketObjects",
"Effect":"Allow",
"Principal": "*",
"Action":["s3:GetObject"],