$ 4.2.36 7 507—> grep `whoami` algorithm.c to jeffrin@rocketmail.com $ 4.2.36 8 508—> $ 4.2.36 8 508—> whoami jeffrin $ 4.2.36 9 509—> $ 4.2.36 3 503—> grep ls ls2.wav Binary file ls2.wav matches $ 4.2.36 4 504—> grep `ls` ls2.wav grep: 12: Is a directory grep: 2008: Is a directory grep: 2010: Is a …