Tags
#php
#kotlin
#bash
#go
#sql
#rust
#typescript
#html
#java
#python
#files
#utils
#strings
#http
#concurrency
#async
#json
#arrays
#security
#types
#crypto
#database
#dates
#format
Bash
SSH to Multiple Hosts in Parallel
Run the same command on a fleet of hosts. Three patterns: serial loop (simplest), GNU parallel (fastest), pssh (purpose-built).
@admin
Bash
Run on Multiple Hosts via SSH (with progress)
Iterate a host list, run the same command on each, show colored OK/FAIL summary at the end. Useful for ad-hoc fleet operations without setting up Ansible.
Bash
Generate SSH Keypair Non-Interactively
ssh-keygen normally prompts. Pass -N "" for empty passphrase, -f for the path, -t ed25519 for modern key type. Idempotent — skip if a key already exists.