我试图在bash脚本中使用curl从hawkbit下载文件。下面是curl调用
curl --fail -sS -O -C - --location "${HEADERS[@]}" -w "%{http_code}n" -X GET "$temp_url"
现在我想从curl --fail存储任何错误消息，如果有任何到一个变量。(示例:curl: (22) The requested URL returned error: 416)
#!/bin/bash
response=$(curl --fail -sS -O -C - --location "${HEADERS[@]}" -w "%{http_code}n" -X GET "$temp_url")
exit_status=$?
echo "exit status is $exit_status"
http_code=${response: -3}
if [ $exit_status -eq "0" ] && [ $http_code -eq "200" ] ; then
echo "Success"
else
echo "Failure"
exit $exit_status
fi
有谁能告诉我应该如何改善旋度响应的行为吗?
p。S:如果缺少什么信息，请告诉我。
您正在存储"exit_status"在curl命令之前。这将始终将其设置为值0。你的curl命令似乎也不完整，但那是另一回事。
我认为你真正需要帮助的是如何存储curl失败的错误消息，如果有的话:
$ curl --fail 'foo:bar'
curl: (3) URL using bad/illegal format or missing URL
$ echo $?
3
失败:旋度
$ { response=$( curl --fail 'foo:bar' 2>&1 >&3 3>&-); } 3>&1
$ echo $?
3
$ echo "$response"
curl: (3) URL using bad/illegal format or missing URL
旋度成功:
$ { response=$( curl --fail 'http://example.com' 2>&1 >&3 3>&-); } 3>&1
<!doctype html>
<html>
<head>
<title>Example Domain</title>
<meta charset="utf-8" />
<meta http-equiv="Content-type" content="text/html; charset=utf-8" />
<meta name="viewport" content="width=device-width, initial-scale=1" />
<style type="text/css">
body {
background-color: #f0f0f2;
margin: 0;
padding: 0;
font-family: -apple-system, system-ui, BlinkMacSystemFont, "Segoe UI", "Open Sans", "Helvetica Neue", Helvetica, Arial, sans-serif;
}
div {
width: 600px;
margin: 5em auto;
padding: 2em;
background-color: #fdfdff;
border-radius: 0.5em;
box-shadow: 2px 3px 7px 2px rgba(0,0,0,0.02);
}
a:link, a:visited {
color: #38488f;
text-decoration: none;
}
@media (max-width: 700px) {
div {
margin: 0 auto;
width: auto;
}
}
</style>
</head>
<body>
<div>
<h1>Example Domain</h1>
<p>This domain is for use in illustrative examples in documents. You may use this
domain in literature without prior coordination or asking for permission.</p>
<p><a href="https://www.iana.org/domains/example">More information...</a></p>
</div>
</body>
</html>
$ echo $?
0
$ echo "$response"
见https://unix.stackexchange.com/a/474195/133219。