In the text file, some lines are delimited by colon and some are delimited by space. Write a command to print the third field of each line.

How do you rename the files in a directory with _new as suffix?

ls -lrt|grep ‘^-‘| awk ‘{print “mv “$9” “$9″.new”}’ | sh

How to run awk command specified in a file?

awk -f filename

Write a command to display the first 10 characters from each line of a file?

cut -c -10 filename