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9) Use sed to remove the middle three fields in each line of mountainList.txt Hint: Think about the meaning of regex '[AI Sample Output Brasstown

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9) Use sed to remove the middle three fields in each line of "mountainList.txt" Hint: Think about the meaning of regex '[AI Sample Output Brasstown Bald, Union County Rabun Bald,Rabun County Dick's Knob, Rabun County Hightower Bald, Towns County Wolfpen Ridge, Towns and Union Counties Blood Mountain, Union County Tray Mountain, Towns County Grassy Ridge, Rabun County Slaughter Mountain, Union County Double Spring Knob, Rabun County Coosa Bald, Union County 10) Use awk to finish task 9). 9) Use sed to remove the middle three fields in each line of "mountainList.txt" Hint: Think about the meaning of regex '[AI Sample Output Brasstown Bald, Union County Rabun Bald,Rabun County Dick's Knob, Rabun County Hightower Bald, Towns County Wolfpen Ridge, Towns and Union Counties Blood Mountain, Union County Tray Mountain, Towns County Grassy Ridge, Rabun County Slaughter Mountain, Union County Double Spring Knob, Rabun County Coosa Bald, Union County 10) Use awk to finish task 9)

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