文章目錄

• • 1. 腳本制作
  • 2. 運行腳本
  • 3. 腳本進化動態參數傳遞
  • 4. 運行腳本
  • 5. 腳本分解

1. 腳本制作

#!/bin/bash URL_LIST=$@ for URL in $URL_LIST; doFAIL_COUNT=0for ((i=1;i<=3;i++)); doHTTP_CODE=$(curl -o /dev/null --connect-timeout 3 -s -w "%{http_code}" $URL)if [ $HTTP_CODE -eq 200 ]; thenecho "$URL OK"breakelseecho "$URL retry $FAIL_COUNT"let FAIL_COUNT++fidoneif [ $FAIL_COUNT -eq 3 ]; thenecho "Warning: $URL Access failure!"fi done

2. 運行腳本

[root@localhost app]# ./8.sh www.baidu.com OK www.ctnrs.com retry 0 www.ctnrs.com retry 1 www.ctnrs.com retry 2 Warning: www.ctnrs.com Access failure! [root@localhost app]#

3. 腳本進化動態參數傳遞

#!/bin/bash URL_LIST=$@ for URL in $URL_LIST; doFAIL_COUNT=0for ((i=1;i<=3;i++)); doHTTP_CODE=$(curl -o /dev/null --connect-timeout 3 -s -w "%{http_code}" $URL)if [ $HTTP_CODE -eq 200 ]; thenecho "$URL OK"breakelseecho "$URL retry $FAIL_COUNT"let FAIL_COUNT++fidoneif [ $FAIL_COUNT -eq 3 ]; thenecho "Warning: $URL Access failure!"fi done

4. 運行腳本

[root@localhost app]# ./8.sh www.baidu.com www.ctnrs.com www.baidu.com OK www.ctnrs.com retry 0 www.ctnrs.com retry 1 www.ctnrs.com retry 2 Warning: www.ctnrs.com Access failure!

5. 腳本分解

[root@localhost app]# curl -I www.baidu.com HTTP/1.1 200 OK Accept-Ranges: bytes Cache-Control: private, no-cache, no-store, proxy-revalidate, no-transform Connection: keep-alive Content-Length: 277 Content-Type: text/html Date: Mon, 24 Feb 2020 13:54:03 GMT Etag: "575e1f5c-115" Last-Modified: Mon, 13 Jun 2016 02:50:04 GMT Pragma: no-cache Server: bfe/1.0.8.18[root@localhost app]# [root@localhost app]# curl -o /de/dev/null -s -w "%{http_code}" http://www 200 [root@localhost app]#

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