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Exercises: shell scripts (1)

  1. Write a script called l which runs ls on supplied files, with ls arguments -las

  2. Write a script called wtally which produces a word-frequency profile of text on its standard input or in a named file. A word is defined to be any sequence of letters or apostrophes (e.g. "cat", "running", "can't", etc.)

  3. Write a script called args which shows information about the script, including all of its command-line arguments, one per line