sed不能处理变量

Question

这是我的sh文件内容：

for file in *.html
do
aa=`grep -o '<div id\=\"vdl.*' $file `
bb=`grep -o '<a href\=\"inde.*下一页<\/a>'  $file `
sed -i "s/$aa/$bb/g"  $file
done

执行： bash -x ./1.sh
结果如下

+ for file in *.html
++ grep -o '<div id\=\"vdl.*' 10621997.html
+ aa='<div id="vdl"><script>show_vdl();</script> </div><div id="vfmt"><script>show_vfmt();</script> </div><div id="vf1"><script>show_vf1();</script></div><div id="vf2"><script>show_vf2();</script></div><div id="footlink"><a href="10621996.html">上一页</a> &nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp; <a href="/ '
++ grep -o '<a href\=\"inde.*下一页<\/a>' 10621997.html
+ bb='<a href="index.html">世界上下五千年</a></div><div id="linkright"><a href="10621996.html">上一页</a> |   | <a href="10621998.html">下一页</a>'
+ sed -i 's <div id="vdl"><script>show_vdl();</script> </div><div id="vfmt"><script>show_vfmt();</script> </div><div id="vf1"><script>show_vf1();</script></div><div id="vf2"><script>show_vf2();</script></div><div id="footlink"><a href="10621996.html">上一页</a> &nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp; <a href="/  <a href="index.html">世界上下五千年</a></div><div id="linkright"><a href="10621996.html">上一页</a> |   | <a href="10621998.html">下一页</a>  10621997.html'
sed：-e 表达式 #1，字符 46：“s”的未知选项
+ for file in *.html
++ grep -o '<div id\=\"vdl.*' 10621998.html
+ aa='<div id="vdl"><script>show_vdl();</script> </div><div id="vfmt"><script>show_vfmt();</script> </div><div id="vf1"><script>show_vf1();</script></div><div id="vf2"><script>show_vf2();</script></div><div id="footlink"><a href="10621997.html">上一页</a> &nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp; <a href="/ '
++ grep -o '<a href\=\"inde.*下一页<\/a>' 10621998.html
+ bb='<a href="index.html">世界上下五千年</a></div><div id="linkright"><a href="10621997.html">上一页</a> |   | <a href="10621999.html">下一页</a>'
+ sed -i 's <div id="vdl"><script>show_vdl();</script> </div><div id="vfmt"><script>show_vfmt();</script> </div><div id="vf1"><script>show_vf1();</script></div><div id="vf2"><script>show_vf2();</script></div><div id="footlink"><a href="10621997.html">上一页</a> &nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp; <a href="/  <a href="index.html">世界上下五千年</a></div><div id="linkright"><a href="10621997.html">上一页</a> |   | <a href="10621999.html">下一页</a>  10621998.html'
sed：-e 表达式 #1，字符 46：“s”的未知选项

求教如何更改，谢谢。

Answer 1

我估计sed一个命令只能处理单一行的内容，不能处理两行
所以我换个办法，解决了。

for file in *.html
do
grep -o  '<a href\=\"inde.*下一页<\/a>'  $file  > /tmp/linshi
sed  -i -e '/<div id\=\"vdl/r /tmp/linshi'  -e '/<div id\=\"vdl/d'  $file
done

Answer 2

sed -i "s|$aa|$bb|g"  $file

这样试试