Getting the jpg images from an HTML file

Question

I\'m trying to use grep to get the full url addresses of jpg images in an HTML file. One problem is that there aren\'t many newlines in it, so when I use grep it gets the path,

Answer 1

One single sed command

sed -n '/<img/s/.*src="\([^"]*\)".*/\1/p' yourfile.html

_{or using ERE (extended regular expressions) to avoid backslashes from above expression:}

sed -E -n '/<img/s/.*src="([^"]*)".*/\1/p' yourfile.html

One basic grep command

grep -o '<img[^>]*src="[^"]*"' yourfile.html

Two successive basic grep commands

grep -o '<img[^>]*src="[^"]*"' yourfile.html | grep -o '"[^"]*"'

One single grep commands using Perl Regex (PER)

grep -Po '<img[^>]*src="\K[^"]*(?=")' yourfile.html

Using ack as a grep-like replacement

sudo apt install ack
ack -o '<img[^>]*src="\K[^"]*(?=")' yourfile.html

Downloading a web page as proposed by s-hunter

curl -s example.com/a.html | sed -En '/<img/s/.*src="([^"]*)".*/\1/p'