Run command in argument across all ssh servers under .ssh/config

gistfile1.txt

#!/bin/sh

# Check if a command argument is provided
if [ -z "$1" ]; then
    echo "Usage: $0 <command>"
    exit 1
fi

# Define the host prefix if provided, otherwise set to an empty string
HOST_PREFIX="${HOST_PREFIX:-}"

# Extract host names or patterns from the .ssh/config file, filtering out entries with an asterisk
HOSTS=$(grep -oE "Host\s${HOST_PREFIX}[^[:space:]]*" "$HOME/.ssh/config" | awk '$2 !~ /\*/ {print $2}')

# Iterate over each host and execute the command
for host in $HOSTS; do
    printf "\n\033[1;33mHOST: %s\033[0m\n" "$host"
    ssh -n -o ConnectTimeout=7 "$host" "$@" 2>&1
done