i have a text file where each line looks like this:

<img border=0 width=555 height=555 src=http://websitelinkimagelinkhere>  

each line is like that for like 1500 lines, i want to sort of 'grep' (i dont think that will work because it returns the whole line) each line for 'http://websiteimagelinkhere'
output file should have newlines or tabs after each image link, like the original file.
or if someone only knows a way to do this with each element being in a cell of the same column that would be okay too.