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File size: 417 Bytes
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#!/bin/bash
set -e
# Use the USER_ID environment variable or default to 1000
USER_ID=${USER_ID:-1000}
# Check if the user already exists
if id "$USER_ID" >/dev/null 2>&1; then
echo "User with ID $USER_ID already exists."
else
echo "Creating user with ID $USER_ID."
# Create a new user with the specified ID
useradd -m -u "$USER_ID" user
fi
# Run the CMD or any other command you want to execute
exec "$@"
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