Grep 无法识别的选项 '-->' while parsion content of html element
Grep unrecognized option '-->' while parsion content of html element
我正在尝试使用 class“error-icon”解析 div 元素的内容，并且 grep 显示带有多个 attempts.Here 的无法识别的选项是我的 code.Please 帮助
#!/bin/sh
verifyCard=
if [ -z "${verifyCard}" ]; then echo "No argument supplied"; exit 1; fi
response=$(curl 'https://www.isic.org/verify/' -H 'User-Agent: Mozilla/5.0 (X11; Ubuntu; Linux x86_64; rv:80.0) Gecko/20100101 Firefox/80.0' -H 'Accept: text/html,application/xhtml+xml,application/xml;q=0.9,image/webp,*/*;q=0.8' -H 'Accept-Language: en-US,en;q=0.5' --compressed -H 'Content-Type: application/x-www-form-urlencoded' -H 'Origin: https://www.isic.org' -H 'Connection: keep-alive' -H 'Referer: https://www.isic.org/verify/' -H 'Cookie: PHPSESSID=46plnh6b31e2pusv1do6thfbm7; AWSELB=AF73034F18B38D7DCED6DEDC728D31BA3F3A73F96747FEE7FA7C4F7A74BC9954E5928CBDDD5C053FFB2A37CE37136C4BA008B15163192B34CFA04D35BEC4ED0D0D2913A2FB; AWSELBCORS=AF73034F18B38D7DCED6DEDC728D31BA3F3A73F96747FEE7FA7C4F7A74BC9954E5928CBDDD5C053FFB2A37CE37136C4BA008B15163192B34CFA04D35BEC4ED0D0D2913A2FB; _ga=GA1.2.650910486.1600495658; _gid=GA1.2.731428038.1600495658; _gat=1' -H 'Upgrade-Insecure-Requests: 1' --data-raw 'verify_card_number=${$verifyCard}')
output=$(grep -o '<div class="error-icon">[^<]*' "$response" | grep -o '[^>]*$')
echo "$output"
行
response=$(curl ...)
将 curl 命令的输出放入名为 response.
的变量中
在您的 grep 命令中，您尝试将变量的扩展作为参数传递。
output=$(grep -o '<div class="error-icon">[^<]*' "$response" | ...)
grep 尝试将值解释为命令行参数，这可能会导致各种错误，具体取决于实际输出。在我的测试中，我收到一条消息 grep: <some html code>: File name too long 因为它试图将其解释为文件名参数。
您应该将数据保存在文件中并将其传递给 grep。根据需要调整临时文件的名称和位置。示例：
#!/bin/sh
verifyCard=
if [ -z "${verifyCard}" ]; then echo "No argument supplied"; exit 1; fi
curl -o response-file 'https://www.isic.org/verify/' -H 'User-Agent: Mozilla/5.0 (X11; Ubuntu; Linux x86_64; rv:80.0) Gecko/20100101 Firefox/80.0' -H 'Accept: text/html,application/xhtml+xml,application/xml;q=0.9,image/webp,*/*;q=0.8' -H 'Accept-Language: en-US,en;q=0.5' --compressed -H 'Content-Type: application/x-www-form-urlencoded' -H 'Origin: https://www.isic.org' -H 'Connection: keep-alive' -H 'Referer: https://www.isic.org/verify/' -H 'Cookie: PHPSESSID=46plnh6b31e2pusv1do6thfbm7; AWSELB=AF73034F18B38D7DCED6DEDC728D31BA3F3A73F96747FEE7FA7C4F7A74BC9954E5928CBDDD5C053FFB2A37CE37136C4BA008B15163192B34CFA04D35BEC4ED0D0D2913A2FB; AWSELBCORS=AF73034F18B38D7DCED6DEDC728D31BA3F3A73F96747FEE7FA7C4F7A74BC9954E5928CBDDD5C053FFB2A37CE37136C4BA008B15163192B34CFA04D35BEC4ED0D0D2913A2FB; _ga=GA1.2.650910486.1600495658; _gid=GA1.2.731428038.1600495658; _gat=1' -H 'Upgrade-Insecure-Requests: 1' --data-raw 'verify_card_number=${$verifyCard}'
output=$(grep -o '<div class="error-icon">[^<]*' response-file | grep -o '[^>]*$')
rm response-file
echo "$output"
如果您使用 bash 或 zsh 而不是 sh，有一些方法可以将一些变量值替换为输入文件，例如参见using a Bash variable in place of a file as input for an executable.
中的答案
我正在尝试使用 class“error-icon”解析 div 元素的内容，并且 grep 显示带有多个 attempts.Here 的无法识别的选项是我的 code.Please 帮助
#!/bin/sh
verifyCard=
if [ -z "${verifyCard}" ]; then echo "No argument supplied"; exit 1; fi
response=$(curl 'https://www.isic.org/verify/' -H 'User-Agent: Mozilla/5.0 (X11; Ubuntu; Linux x86_64; rv:80.0) Gecko/20100101 Firefox/80.0' -H 'Accept: text/html,application/xhtml+xml,application/xml;q=0.9,image/webp,*/*;q=0.8' -H 'Accept-Language: en-US,en;q=0.5' --compressed -H 'Content-Type: application/x-www-form-urlencoded' -H 'Origin: https://www.isic.org' -H 'Connection: keep-alive' -H 'Referer: https://www.isic.org/verify/' -H 'Cookie: PHPSESSID=46plnh6b31e2pusv1do6thfbm7; AWSELB=AF73034F18B38D7DCED6DEDC728D31BA3F3A73F96747FEE7FA7C4F7A74BC9954E5928CBDDD5C053FFB2A37CE37136C4BA008B15163192B34CFA04D35BEC4ED0D0D2913A2FB; AWSELBCORS=AF73034F18B38D7DCED6DEDC728D31BA3F3A73F96747FEE7FA7C4F7A74BC9954E5928CBDDD5C053FFB2A37CE37136C4BA008B15163192B34CFA04D35BEC4ED0D0D2913A2FB; _ga=GA1.2.650910486.1600495658; _gid=GA1.2.731428038.1600495658; _gat=1' -H 'Upgrade-Insecure-Requests: 1' --data-raw 'verify_card_number=${$verifyCard}')
output=$(grep -o '<div class="error-icon">[^<]*' "$response" | grep -o '[^>]*$')
echo "$output"
行
response=$(curl ...)
将 curl 命令的输出放入名为 response.
在您的 grep 命令中，您尝试将变量的扩展作为参数传递。
output=$(grep -o '<div class="error-icon">[^<]*' "$response" | ...)
grep 尝试将值解释为命令行参数，这可能会导致各种错误，具体取决于实际输出。在我的测试中，我收到一条消息 grep: <some html code>: File name too long 因为它试图将其解释为文件名参数。
您应该将数据保存在文件中并将其传递给 grep。根据需要调整临时文件的名称和位置。示例：
#!/bin/sh
verifyCard=
if [ -z "${verifyCard}" ]; then echo "No argument supplied"; exit 1; fi
curl -o response-file 'https://www.isic.org/verify/' -H 'User-Agent: Mozilla/5.0 (X11; Ubuntu; Linux x86_64; rv:80.0) Gecko/20100101 Firefox/80.0' -H 'Accept: text/html,application/xhtml+xml,application/xml;q=0.9,image/webp,*/*;q=0.8' -H 'Accept-Language: en-US,en;q=0.5' --compressed -H 'Content-Type: application/x-www-form-urlencoded' -H 'Origin: https://www.isic.org' -H 'Connection: keep-alive' -H 'Referer: https://www.isic.org/verify/' -H 'Cookie: PHPSESSID=46plnh6b31e2pusv1do6thfbm7; AWSELB=AF73034F18B38D7DCED6DEDC728D31BA3F3A73F96747FEE7FA7C4F7A74BC9954E5928CBDDD5C053FFB2A37CE37136C4BA008B15163192B34CFA04D35BEC4ED0D0D2913A2FB; AWSELBCORS=AF73034F18B38D7DCED6DEDC728D31BA3F3A73F96747FEE7FA7C4F7A74BC9954E5928CBDDD5C053FFB2A37CE37136C4BA008B15163192B34CFA04D35BEC4ED0D0D2913A2FB; _ga=GA1.2.650910486.1600495658; _gid=GA1.2.731428038.1600495658; _gat=1' -H 'Upgrade-Insecure-Requests: 1' --data-raw 'verify_card_number=${$verifyCard}'
output=$(grep -o '<div class="error-icon">[^<]*' response-file | grep -o '[^>]*$')
rm response-file
echo "$output"
如果您使用 bash 或 zsh 而不是 sh，有一些方法可以将一些变量值替换为输入文件，例如参见using a Bash variable in place of a file as input for an executable.