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BSD 4.2
#print Now, print the fourth line in this file twice, using the same pattern. The file is the same, and you should put the usual finish (w, q, ready) after printing the line. #create Ref 4p .p w q #create file george washington john adams thomas jefferson james madison james monroe john quincy adams #pipe #copyin ex +'set prompt noopt open' file #user #uncopyin #unpipe tail -4 .copy >X1 #cmp X1 Ref #log #next 8.1a 10 8.2a 5
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