Suppose we have a file
directories.txtwhere each line contains the name of a directory that we want to create. Our friend proposes that we run
cat directories.txt | mkdirinto order to do this? Will this command work? If not, how can we change this command to get it to work/could we improve it in any way?
Come up with a general statement about when we need to use the
Suppose we want to run
Mystery.javaand save standard output to a file and have it print standard output to the console. How would we achieve this?
Again, suppose we are running
Mystery.java. This time, however, we want standard output and standard error to print to the console, in addition to having all output printed to
out1.txt. How would we achieve this?
Suppose we have the
intro_survey.csvfrom the previous homework assignment. Using
cut, how many unique answers were there to the question “what is your favorite candy”?
Write a command that would delete all directories, recursively, starting from the current directory. Be careful about where you run this command!!