Sed Problem

Hi, I am face with a problem with sed command here. I wan to find a string and replace it within a file.

Eg.

from
<a href="BuildPage.cgi?body=index.html">

change to

<a href=BuildPage.cgi?body=index.html">

what is the code tat i should do? thanks for helping..

echo <string> | sed 's/"//'

But I guess you want to delete the second " too:

echo <string> | sed 's/"//g'

yupe actually i wan to replace both double quotes here..

But, the file i wan to change got lots of double quotes and i just want to change the double quotes of the href action. So, how to do that ler? is it like tat

sed 's/href=\"*.*\"/href=*.*/'

You need a good regular expression to do this.

I can give an example, but it depends on how the html page was written. More specific: how the <a href......> line is written.

- Is it by itself on a line,
- Do you use title="..." in the href tag,
- Are there multiple html statements on 1 line,
- etc

Just 3 of many examples:

<a href="BuildPage.cgi?body=index.html">
<a href="BuildPage.cgi?body=index.html" title="Build Page">Name</a>
<a href="BuildPage.cgi?body=index.html">Name</a><p class="article">

For the above examples the following statement will do the trick:

cat <htm_file> | sed 's/a href="\(.*\)html"/a href=\1html/'

But you might need to change the regular expression for your specific needs.

Hope this helps.

i try the code u type to me, but it doesn't work

the output i want should be
<a href=BuildPage.cgi?body=index.html>
but the output i get is
<a href=html>
the word after the href and b4 the html all gone.

beside this, sometimes the href not always end with html, for example
<a href="BuildPage.cgi?body=index.html#adac">

so, i wan to eliminate the double quotes of the code above too~

do u hv any better solution? Thanks you

Sorry, but the solution I gave does work:

$ cat somepage.html

<a href="BuildPage.cgi?body=index.html">
<a href="BuildPage.cgi?body=index.html" title="Build Page">Name</a>
<a href="BuildPage.cgi?body=index.html">Name</a><p class="article">

$ cat somepage.html | sed 's/a href="\(.*\)html"/a href=\1html/'

<a href=BuildPage.cgi?body=index.html>
<a href=BuildPage.cgi?body=index.html title="Build Page">Name</a>
<a href=BuildPage.cgi?body=index.html>Name</a><p class="article">

As you can see, only the " around "BuildPage.cgi?body=index.html" are stripped all the rest stays the same.

Did you make a typo??

As for the ......html#sometag".... You need to adjust the regular expression for that:

This will take care of the example you gave (and still works with the 3 example lines shown above):

sed 's/a href="\(.*\)html[#]*[a-z]*"/a href=\1html/'

Thanks for ur helping, now i already solve the first problem. Now, the second problem is the typo.

from the code that u given to me, it will remove the typo behind. but actually i wan the typo to remain there.

for example,
<a href="BuildPage.cgi?body=index.html#abc">
change to
<a href=BuildPage.cgi?body=index.html#abc>

Maybe you misunderstood me.

Both examples I gave will do what you want.
The second one will take care of the 'html#abc' stripping.

Thanks druuna, I solve the problem liao.. Thanks for ur guidance and helping~
It does help me a lots. i appreciate it very much~
all the best~