(Urgent) A few shell programming courses for beginners!
Source: Internet
Author: User
(Urgent) A few shell programming courses for beginners! -- Linux general technology-Linux technology and application information. For details, refer to the following section. 1. display the list of the 40 commands previously executed, and re-execute the last 5th commands. Edit one of the commands and execute them.
2. design a program cuts, which reads data from the standard input and obtains the range and data defined by the first parameter n and the second Singular m. Both n and m are integers, that is, all characters (including the two characters) between the n characters are extracted from the input characters. For example:
$ Cuts 11 14
This is a test of cuts program (input)
Test (display result)
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