curl和wget检测网页状态的区别

curl -s -o /dev/null -w "%{http_code}" https://example.com

curl -L -s -o /dev/null -w "%{http_code} %{url_effective}\n" https://example.com

curl --connect-timeout 10 --max-time 20 -v -I https://example.com

wget --spider -S --max-redirect 0 https://example.com 2>&1 | grep "HTTP/" | awk '{print $2}'

wget --spider -q -O /dev/null https://example.com && echo "OK" || echo "FAIL"

#!/bin/bash
URL="https://example.com"
STATUS_CODE=$(curl -s -o /dev/null -w "%{http_code}" -L $URL)

if [ $STATUS_CODE -eq 200 ]; then
  echo "$URL is UP (Status: $STATUS_CODE)"
else
  echo "$URL is DOWN (Status: $STATUS_CODE)"
  exit 1
fi

#!/bin/bash
URL="https://example.com"
wget --spider -q -T 10 -t 2 $URL

if [ $? -eq 0 ]; then
  echo "$URL is UP"
else
  echo "$URL is DOWN"
  exit 1
fi

# 使用 curl 检查内容是否包含 "Welcome"
curl -s -L https://example.com | grep -q "Welcome" && echo "OK" || echo "MISSING"

curl -k -s -o /dev/null -w "%{http_code}" https://example.com  # -k 跳过证书验证

URLS=("https://example.com" "https://google.com")
for URL in "${URLS[@]}"; do
  CODE=$(curl -s -o /dev/null -w "%{http_code}" -L $URL)
  echo "$URL: $CODE"
done