使用 BASH 和 AWK 创建 HTML 表格
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Creating an HTML table with BASH & AWK
提问by jdorfman
I am having issues creating a html table to display stats from a text file. I am sure there are 100 ways to do this better but here it is:
我在创建 html 表以显示文本文件中的统计数据时遇到问题。我确信有 100 种方法可以更好地做到这一点，但它是：
(The comments in the following script show the outputs)
（以下脚本中的注释显示了输出）
#!/bin/bash
function getapistats () {
curl -s http://api.example.com/stats > api-stats.txt
awk {'print '} api-stats.txt > api-stats-int.txt
awk {'print '} api-stats.txt > api-stats-fqdm.txt
}
# api-stats.txt example
# 992 cdn.example.com
# 227 static.foo.com
# 225 imgcdn.bar.com
# end api-stats.txt example
function get_int () {
for i in `cat api-stats-int.txt`;
do echo -e "<tr><td>${i}</td>";
done
}
function get_fqdn () {
for f in `cat api-stats-fqdn.txt`;
do echo -e "<td>${f}</td></tr>";
done
}
function build_table () {
echo "<table>";
echo -e "`get_int`" "`get_fqdn`";
#echo -e "`get_fqdn`";
echo "</table>";
}
getapistats;
build_table > api-stats.html;
# Output fail :|
# <table>
# <tr><td>992</td>
# <tr><td>227</td>
# <tr><td>225</td><td>cdn.example.com</td></tr>
# <td>static.foo.com</td></tr>
# <td>imgcdn.bar.com</td></tr>
# Desired output:
# <tr><td>992</td><td>cdn.example.com</td></tr>
# ...
回答by
This is reasonably simple to do in pure awk:
这在纯 awk 中相当简单：
curl -s http://api.example.com/stats > api-stats.txt
awk 'BEGIN { print "<table>" }
{ print "<tr><td>" "</td><td>" "</td></tr>" }
END { print "</table>" }' api-stats.txt > api-stats.html
Awk is really made for this type of use.
Awk 确实是为这种用途而设计的。
回答by geirha
You can do it with one awk at least.
你至少可以用一个 awk 来完成。
curl -s http://api.example.com/stats | awk '
BEGIN{print "<table>"}
{printf("<tr><td>%d</td><td>%s</td></tr>\n",,)}
END{print "</table>"}
'
回答by Zoltán Haindrich
this can be done w/ bash ;)
这可以用 bash 来完成；)
while read -u 3 a && read -u 4 b;do
echo $a$b;
done 3</etc/passwd 4</etc/services
but my experience is that usually it's a bad thing to do things like this in bash/awk/etc
但我的经验是，在 bash/awk/etc 中做这样的事情通常是一件坏事
the feature i used in the code is deeplyburried in the bash manual page...
我在代码中使用的功能深深地隐藏在 bash 手册页中......
i would recommend to use some real language for this kind of data processing for example: (ruby or python) because they are more flexible/readable/maintainable
我建议使用一些真正的语言来处理这种数据，例如：（ruby 或 python）因为它们更灵活/可读/可维护
