Write a minimal vi command to replace all occurrences of all the words "tex" and "miktex" with "LaTeX" in an open text file. Note that "tex" and "miktex" might start with capital letters, or might be entirely in uppercase. Use grep to find lines in a text file that contain at least one of the following compute, Compactor, computation But must not contain any of the following: computing, Computational Note that you cannot use the trivial, inefficient word selection, i.e., compute | Compactor | computation. Use grep to find lines in a text file that contain valid Australian land-line and mo- bile numbers for only the variations whose examples are given below 9266 9266 92669266 (08) 9266 9266 08-9266 9266 0402 926 926 (08)92669266 0892669266 0402926926