foozy@708: $ \textbf{echo 'this is my first line' > oldfile}
foozy@708: $ \textbf{echo 'my first line is here' > newfile}
foozy@708: $ \textbf{diff -u oldfile newfile > tiny.patch}
foozy@708: $ \textbf{cat tiny.patch}
foozy@708: 
foozy@708: 
foozy@708: @@ -1 +1 @@
foozy@708: -this is my first line
foozy@708: +my first line is here
foozy@708: $ \textbf{patch < tiny.patch}
foozy@708: patching file oldfile
foozy@708: $ \textbf{cat oldfile}
foozy@708: my first line is here