2

I'm trying to patch a file like this in bash:

cat << ''EOF | patch --dry-run
> --- urancid     2017-12-06 09:56:33.000000000 -0600  patch --dry-run
> +++ /tmp/urancid        2017-12-06 15:06:57.000000000 -0600
> @@ -393,7 +393,7 @@
>          last if (/^$prompt/);
>          next if (/-ac\.\s*/);
>          next if (/-fs\.\s*/);
> -       next if (/set date\s*/)
> +       next if (/set date\s*/);
>          next if (/^(\s*|\s*$cmd\s*)$/);
>          if ( ! /^$prompt/) {
>                  if ( ! $skipprocess ) {
> EOF

but all I get is

patching file urancid
Hunk #1 FAILED at 393.
1 out of 1 hunk FAILED -- saving rejects to file urancid.rej

Seems like it should be possible, if I cat the patch file I'm pasting it works.

I want to do this so I can make a patch script without including multiple files.

I'm not too familiar with the what "patch" cares about as far, guessing there's some whitespace problems?

5

Fixing up the whitespace in your example so that the patch can apply demonstrates that the concept is acceptable (although I don't see why cat is needed).

On the other hand, if you have a patch that has badly aligned whitespace, I'd suggest you use the --ignore-whitespace parameter. (You can find this in the man page for patch, man patch.)

patch --dry-run --ignore-whitespace << 'EOF'
...
...
EOF
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