Is there a way to pipe the diff output into patch?  The -i parameter is for specifying a diff file, but I just want to do it more dynamically, since I will be updating regularly against a directory that changes frequently. For instacne, something along the lines of patch -b | diff -Nub . /current-files?The man file says-i patchfile  or  --input=patchfileRead the patch from patchfile.  If patchfile is -, read from standard input, the default.But when I try it, I just see the output of the diff on the screen, with no changes applied:testb $> lsfile.txttestb $> patch -i - | diff -Nub . ../testadiff -Nub ./file.txt ../testa/file.txt--- ./file.txt  2011-07-12 09:40:08.195467000 -0400+++ ../testa/file.txt   2011-07-12 09:39:11.181666500 -0400@@ -1,9 +1,7 @@ ijaosdfji jaiosdfjio jklasdkml-asdkml-s;lnk-lsadjkl-asdfas-asdf+klasdkml+nas;lnk+jklsadjkldiff -Nub ./file2.txt ../testa/file2.txt--- ./file2.txt 1969-12-31 19:00:00.000000000 -0500+++ ../testa/file2.txt  2011-07-12 09:39:44.196235000 -0400@@ -0,0 +1,6 @@+aljksdf+jklasdflkjlknm+nksalk;+klaskl;+ioasjdoiaj+lkmasd'lkmtestb $> lsfile.txt
Pipe diff file into patch?
pipe;diff;patch
Don't you want the other way around?diff -Nub . /current-files | patch -b