General :: Grepping Lines More Than A Screen's Worth Width

What If I wanted to scan a string like the following...

[Code]...

Anyhow just one giant string that's longer than my screen's width. If I simply copy and paste that string after a grep command, it seems that the terminal inserts newlines at the terminal's width and therefore not the whole string goes in. Even if I insert a quote before the beginning of the string and then paste it in, terminal still reads in a newlines somehow and obviously says command not found, etc.