#unix Kelly BaldwinHolly Cross, WorcesterWhich command is used to change protection mode of files starting with the string emp and ending with 1,2, or 3?chmod u+x emp[l-3]Jessica WilkinsonHarvard UniversityWhich command is used to extract specific columns from the file?cutJose RamosUniversity of Massachusetts, LowellWhich of the commands is used to display the directory attributes rather than its contents?ls -l -dVikram MehtaIIT-MadrasWhich command is used to remove the read permission of the file 'note' from both the group and others?chmod go-r, 4-x noteZach LymanBoston CollegeWhich command is used to sort the lines of data in a file in reverse order?sort -rWanda RichOhio StateWhich command is used to display the top of the file?headRay HanoverUniversity of New HampshireWhich command is used to copy all files having the string chap and any two characters after that to the progs directory?cp chap?? progsAlexis MonaccoEcole Normale Superieure, ParisWhich of the following keys is used to replace a single character with new text?sJoe ChangUniversity of BeijingWhich command sends the word count of the file infile to the newfile?wc infile >newfileBeth SullivanWhich is not a communication command?grep Load More Info Questions 10 Similar #artificial-intelligence#bigdata#c#c++#cobol Hot questions eeeeeeeeee