Create and use a subroutine that takes single character

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Reference no: EM132182800

Windows batch scripting

Create a script file called ‘envVarCount.bat' that counts and displays the number of environment variables for a given character set. The envVarCount script includes the following functionality:

header comment that contains author name, date, filename, and short description of script functionality

disables command echoing

takes 1 or more command line arguments that represent the character set

displays usage message and exits with error code of 1 if no command line argument given

for each character in the command line argument, output a count of the environment variables that start with the given character

Create and use a subroutine that takes single character parameter and displays a count of the number of environment variables that start with the subroutine parameter.

Reference no: EM132182800

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