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wget to find broken links on a website
Posted on 2010-08-25
So, as the title says, I'm trying to get a list of broken links. More importantly, though, I'm looking for what sites they're on.
This is what I tried:
wget --spider -r -o /log.txt will get me the list of broken links.
I then used wget -r to download the entire website.
I then had to use "cat log.txt | SED 's/http:\/\/www.website.com\//\//' > brokenhtml.txt " to strip the "http://www.website.com/" from the broken links, so that it matched the HREFs in the html of the downloaded pages
I then used grep -rlf brokenhtml.txt www.website.
Everything up to the last steps produces the expected results. When I cat the log.txt and randomly paste the URL into a browser window, it correctly gives me a 404. When I do the last step to find the pages that the HREFs are in, I get pages with no broken links on them.
This is what I tried:
wget --spider -r -o /log.txt will get me the list of broken links.
I then used wget -r to download the entire website.
I then had to use "cat log.txt | SED 's/http:\/\/www.website.com\//\//' > brokenhtml.txt " to strip the "http://www.website.com/" from the broken links, so that it matched the HREFs in the html of the downloaded pages
I then used grep -rlf brokenhtml.txt www.website.
Everything up to the last steps produces the expected results. When I cat the log.txt and randomly paste the URL into a browser window, it correctly gives me a 404. When I do the last step to find the pages that the HREFs are in, I get pages with no broken links on them.
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4 Comments
You grep should probably be an iteration through the contents of brokenhtml.txt.... I.E.
while read line
do
grep -rlf $line www.website.
done <brokenhtml.txt
or...
for f in `cat brokenhtml.txt`
do
grep -rlf $f www.website.
don
or something to that effect.
while read line
do
grep -rlf $line www.website.
done <brokenhtml.txt
or...
for f in `cat brokenhtml.txt`
do
grep -rlf $f www.website.
don
or something to that effect.
apparently grep works better when you separate the parameters with spaces.
Current command that produces the desired results (thus far, it's still running):
grep -r -i -l -f b-links.txt www.website.com
the -f command allows you to use a file for matching patterns, one line per pattern. I did also strip out a leading blank line from the pattern file... perhaps that was also breaking it.
Current command that produces the desired results (thus far, it's still running):
grep -r -i -l -f b-links.txt www.website.com
the -f command allows you to use a file for matching patterns, one line per pattern. I did also strip out a leading blank line from the pattern file... perhaps that was also breaking it.
sed -n '/www.website.com/,$ p' brokenhtml.txt > <out_put_file>
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