$ find . -type f | xargs zgrep -i -A 7 -B 5 0xdeadbeef
./docs/backend/2.txt:0xDEAFBEEF
./docs/backend/2.txt:0xDEADBEEF
./docs/backend/2.txt:0xCafeBabe
./docs/backend/2.txt:0xFadeFade
./docs/backend/2.txt:0xAbbaABBA
./docs/backend/2.txt:0xBABABABA
./docs/backend/2.txt:0x12345678