풀이
┌──(root㉿kali)-[~/raccoon/rcity]
└─# ssh rcity4@ctf.redraccoon.kr -p 31338
rcity4@ctf.redraccoon.kr's password:
rcity4@04d1eb9322c1:~$ cat flag.txt | grep -riw "flag"
flag.txt:syncope Nucula vicissitous Minos orrhology gustation multicarinate flag deuterogelatose pachycephalia derivational
flag.txt:millrace za Spartacist flag here euhemerist Araby sphacelus licorn nonconstruable
flag.txt:Amiidae victualer nosocomium indictional flag kinetograph hempen viscosimetry didelphous shaggily sla
flag.txt:Cephalotaceae hemerologium sanguisuge invoke underyoke flag unadvertised Tenonian contendingly displayer Kiwanis
flag.txt:Itoism flag widdendream unfearing Asherites sperm Vasundhara orthophosphate crusader pathometabolism lymphy
flag.txt:phytomorphic fornaxid rhematology flag instantial jaculative overexuberant nonconformable gigantize narcotina berycoidean
flag.txt:conjunctur Aquilid supernature fLag Is HerE W6fR3jP7uN1xZ2bL8s4 mumpishly dipterology chromidrosis unresisted제일 마지막에 나오는 것이 flag 이다
grep 명령어의 옵션은 -i, -w, -r을 사용했다
-w : 해당 단어를 찾은 그 줄 전체를 표출해준다
-i : 대소문자 구문 해제
-r : 문자열 검색
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