Familiar with linux Script Programming (shell)

First understand linux Script Programming (shell)-Linux general technology-Linux programming and kernel information, the following is a detailed description. In order to be able to run the program in batches, at the prompt of hwd, we know that bash can be used to complete this job, find a good beginner's documents, and take a note.

Example 1

CODE :#! /Bin/bash // specifies the type of the file hello. sh. For Linux "#! " And the information following the string to determine the file type # This is a very simple example // Annotation Str = "hello world! "// Variable definition Echo $ str // output