Греп из файла
grep -r "string" ~/thread/
DreamCoder
grep -r "string" ~/thread/grep 'word' filename
grep 'word' file1 file2 file3
grep 'string1 string2' filename
cat otherfile | grep 'something'
command | grep 'something'
command option1 | grep 'data'
grep --color 'data' fileNamegrep "string" ~/threads.txt