Question: Please provide the grep command to get the following results Find all the Unix commands that begin with t. Find all the Unix commands with

Please provide the grep command to get the following results

  1. Find all the Unix commands that begin with ”t”.
  2. Find all the Unix commands with length 2.
  3. Find all the Unix commands that end with a digit.
  4. Find all the lines in a file that contain at least one alphabetic character.

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