Question

1)Write the command that moves the file data1 into the directory testdata:

2).Write the command that moves the file data1 into the parent of your current directory.
3)Write the command that shows the contents of the subdirectory letters.

Answer 1

1) mv data1 testdata/
2) mv data1 ../
3) ls letters

These are the *nix commands. You can find out more by looking at their man pages. You can get more info about the man subsystem by running: man man