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If we need an IF statement with many elif elements then it may well be better written as a CASE statement. With the BASH CASE statement we read a value once and test it multiple times. Are final CASE ELSE test would read *), saying well if it is anything else then we will do the following action. Having shown a sample CASE statement we move into a practical script looking at the available disk space and carries out diffent tasks based on the available percentage of disk space