Sheet ⁨05⁩ · ⁨Code snippets⁩Surveyed ⁨2026⁩
All Categories

Automation

Category

Automation

Bash Script Locking: Prevent Concurrent Runs with a PID File

Bash Script Locking: Prevent Concurrent Runs with a PID File

Quick Tip Wrap any script that must not run twice at once in a PID-file lock, and a second copy simply exits instead of corrupting your data. The Problem The Problem Cron does not c

#Bash#Pid file#Locking+3 tags
Bash
View Code
Bash Retry Function: Automatically Retry Failing Commands with Exponential Backoff

Bash Retry Function: Automatically Retry Failing Commands with Exponential Backoff

Quick Tip Wrap any flaky command in one reusable retry function and stop re-running red pipelines by hand. The Problem The Problem Some commands fail for reasons that have nothing to

#Bash#Retry#Exponential Backoff+3 tags
Bash
View Code
AWS EC2 Instance Management with Boto3: Start, Stop, and Query Instances

AWS EC2 Instance Management with Boto3: Start, Stop, and Query Instances

If you've ever spent 20 minutes clicking through the AWS Console just to stop a handful of dev instances, you already know the pain. It's tedious, it doesn't scale, and one wrong click can ruin your a

#AWS#EC2#Boto3+6 tags
Python
View Code