The text used here was taken from:
http://the-tech.mit.edu/Shakespeare/midsummer/full.html
$ mkdir patches
$ cat > Oberon.txt
< Yet mark'd I where the bolt of Cupid fell:
< It fell upon a little western flower,
< Before milk-white, now purple with love's wound,
< And girls call it love-in-idleness.
$ quilt new flower.diff
> Patch %{P}flower.diff is now on top
$ quilt add Oberon.txt
> File Oberon.txt added to patch %{P}flower.diff
$ cat >> Oberon.txt
< The juice of it on sleeping eye-lids laid
< Will make a man or woman madly dote
< Upon the next live creature that it sees.
Or ``quilt edit Oberon.txt''
$ quilt refresh -p ab
> Refreshed patch %{P}flower.diff
$ cat patches/flower.diff
> Index: b/Oberon.txt
> ===================================================================
> --- a/Oberon.txt
> +++ b/Oberon.txt
> @@ -2,3 +2,6 @@
> It fell upon a little western flower,
> Before milk-white, now purple with love's wound,
> And girls call it love-in-idleness.
> +The juice of it on sleeping eye-lids laid
> +Will make a man or woman madly dote
> +Upon the next live creature that it sees.
$ sed -ne '1,4p' Oberon.txt > Oberon.new
$ echo "Fetch me that flower; the herb I shew'd thee once:" >> Oberon.new
$ sed -e '1,4d' Oberon.txt >> Oberon.new
$ mv Oberon.new Oberon.txt
$ quilt diff -z -p ab
> Index: b/Oberon.txt
> ===================================================================
> --- a/Oberon.txt
> +++ b/Oberon.txt
> @@ -2,6 +2,7 @@
> It fell upon a little western flower,
> Before milk-white, now purple with love's wound,
> And girls call it love-in-idleness.
> +Fetch me that flower; the herb I shew'd thee once:
> The juice of it on sleeping eye-lids laid
> Will make a man or woman madly dote
> Upon the next live creature that it sees.
$ quilt diff -p ab
> Index: b/Oberon.txt
> ===================================================================
> --- a/Oberon.txt
> +++ b/Oberon.txt
> @@ -2,3 +2,7 @@
> It fell upon a little western flower,
> Before milk-white, now purple with love's wound,
> And girls call it love-in-idleness.
> +Fetch me that flower; the herb I shew'd thee once:
> +The juice of it on sleeping eye-lids laid
> +Will make a man or woman madly dote
> +Upon the next live creature that it sees.
$ quilt refresh
> Refreshed patch %{P}flower.diff
$ quilt top
> %{P}flower.diff
$ quilt files
> Oberon.txt
$ quilt patches Oberon.txt
> patches/flower.diff
$ quilt pop -f
> Removing patch %{P}flower.diff
> Restoring Oberon.txt
>
> No patches applied
$ sed -e "s/girls/maidens/" Oberon.txt > Oberon.new
$ mv Oberon.new Oberon.txt
$ quilt push
> Applying patch %{P}flower.diff
>~ patching file `?Oberon.txt'?
> Hunk #1 FAILED at 2.
>~ 1 out of 1 hunk FAILED -- rejects in file `?Oberon.txt'?
> Patch %{P}flower.diff does not apply (enforce with -f)
$ quilt push -f
> Applying patch %{P}flower.diff
>~ patching file `?Oberon.txt'?
> Hunk #1 FAILED at 2.
>~ 1 out of 1 hunk FAILED -- saving rejects to (file )?`?Oberon.txt.rej'?
> Applied patch %{P}flower.diff (forced; needs refresh)
$ cat >> Oberon.txt
< Fetch me that flower; the herb I shew'd thee once:
< The juice of it on sleeping eye-lids laid
< Will make a man or woman madly dote
< Upon the next live creature that it sees.
$ quilt refresh -p ab
> Refreshed patch %{P}flower.diff
$ rm -f Oberon.txt.rej
$ cat Oberon.txt
> Yet mark'd I where the bolt of Cupid fell:
> It fell upon a little western flower,
> Before milk-white, now purple with love's wound,
> And maidens call it love-in-idleness.
> Fetch me that flower; the herb I shew'd thee once:
> The juice of it on sleeping eye-lids laid
> Will make a man or woman madly dote
> Upon the next live creature that it sees.
$ cat patches/flower.diff
> Index: b/Oberon.txt
> ===================================================================
> --- a/Oberon.txt
> +++ b/Oberon.txt
> @@ -2,3 +2,7 @@
> It fell upon a little western flower,
> Before milk-white, now purple with love's wound,
> And maidens call it love-in-idleness.
> +Fetch me that flower; the herb I shew'd thee once:
> +The juice of it on sleeping eye-lids laid
> +Will make a man or woman madly dote
> +Upon the next live creature that it sees.
$ quilt grep love
> Oberon.txt:Before milk-white, now purple with love's wound,
> Oberon.txt:And maidens call it love-in-idleness.