$ ./grepsearcing.sh FCQUIT.COM.disasm.txt 0876:0120 E85E00 CALL 0181 0876:013E E84000 CALL 0181 0876:015D E82100 CALL 0181 0876:017B E80300 CALL 0181 0876:0191 E8EDFF CALL 0181 0876:0197 E8E7FF CALL 0181 0876:0185 C3 RET 0876:010D 7409 JZ 0118 0876:0116 740E JZ 0126 0876:0123 EB1C JMP 0141 0876:014A 7409 JZ 0155 0876:0153 740E JZ 0163 0876:0160 EB24 JMP 0186 0876:017E EB06 JMP 0186 0876:018C 7506 JNZ 0194 0876:01A6 7265 JB 020D 0876:01BF 7574 JNZ 0235 0876:01C1 732E JAE 01F1 0876:01C5 752E JNZ 01F5 0876:01D4 7265 JB 023B 0876:01DE 7374 JAE 0254 0876:01E5 7320 JAE 0207 0876:01E8 7869 JS 0253 0876:01EA 7465 JZ 0251 0876:01F3 7373 JAE 0268 0876:01F5 66756C JNZ 00000264 0876:020A 7320 JAE 022C 0876:020C 7265 JB 0273 0876:0212 7365 JAE 0279 0876:0226 7320 JAE 0248 0876:0228 7265 JB 028F 0876:022E 7365 JAE 0295 0876:0243 7420 JZ 0265 0876:0247 756E JNZ 02B7 0876:025C 7420 JZ 027E 0876:0260 756E JNZ 02D0 29 0876:0123 EB1C JMP 0141 0876:0160 EB24 JMP 0186 0876:017E EB06 JMP 0186 3 0876:018C 7506 JNZ 0194 0876:01BF 7574 JNZ 0235 0876:01C5 752E JNZ 01F5 0876:01F5 66756C JNZ 00000264 0876:0247 756E JNZ 02B7 0876:0260 756E JNZ 02D0 6 0876:0107 CD21 INT 21 0876:012D CD21 INT 21 0876:0138 CD21 INT 21 0876:0144 CD21 INT 21 0876:016A CD21 INT 21 0876:0175 CD21 INT 21 0876:0183 CD21 INT 21 0876:019D CD21 INT 21 0876:019F 0D0A54 OR AX,540A 0876:01CA 0D0A24 OR AX,240A 0876:01CD 0D0A54 OR AX,540A 0876:01FA 0D0A5B OR AX,5B0A 0876:0217 0D0A5B OR AX,5B0A 0876:0233 0D0A5B OR AX,5B0A 0876:024C 0D0A5B OR AX,5B0A 0876:01CA 0D0A24 OR AX,240A $ hexdump.exe -C -s 0x9f ../fcdos110/FCQUIT.COM offset: -0x100 0000009f 0d 0a 54 68 65 20 46 72 65 65 43 44 4f 53 20 50 |..The FreeCDOS P| 000000af 72 6f 6a 65 63 74 20 3c 6c 69 6a 69 61 6e 40 61 |roject ..$..| 000000cf 54 68 65 20 46 72 65 65 43 44 4f 53 20 73 79 73 |The FreeCDOS sys| 000000df 74 65 6d 20 68 61 73 20 65 78 69 74 65 64 20 73 |tem has exited s| 000000ef 75 63 63 65 73 73 66 75 6c 21 24 0d 0a 5b 46 43 |uccessful!$..[FC| 000000ff 4b 4e 4c 2e 43 4f 4d 5d 20 68 61 73 20 72 65 61 |KNL.COM] has rea| 0000010f 6c 65 61 73 65 64 21 24 0d 0a 5b 46 43 52 44 2e |leased!$..[FCRD.| 0000011f 43 4f 4d 5d 20 68 61 73 20 72 65 61 6c 65 61 73 |COM] has realeas| 0000012f 65 64 21 24 0d 0a 5b 46 43 4b 4e 4c 2e 43 4f 4d |ed!$..[FCKNL.COM| 0000013f 5d 20 6e 6f 74 20 66 6f 75 6e 64 21 24 0d 0a 5b |] not found!$..[| 0000014f 46 43 52 44 2e 43 4f 4d 5d 20 20 6e 6f 74 20 66 |FCRD.COM] not f| 0000015f 6f 75 6e 64 21 24 00 00 00 00 00 00 00 00 00 |ound!$.........|