Найти в файлах слово и направить в файл

man grep
man >

Через find?

+1

+ help for

C:\> man 'man' is not recognized as an internal or external command, operable program or batch file

Нах? grep hui *.txt вполне работает

C:\> windows 'windows' is not recognized as an internal or external command, operable program or batch file

find . -type f -exec sed -n '/bla-bla-bla/w 13.txt' {} +

man fgrep

Проще всего:

$ fgrep blah-blah-blah * > file13.ext

или

$ fgrep blah-blah-blah file[1-12].ext > file13.ext

>C:\> man 'man' is not recognized as an internal or external command, operable program or batch file

Тогда так: format C: