How can we create a function in shell script?

1.	How can we create a function in shell script?
Answer» In other programming languages, shell FUNCTIONS are much like subroutines, procedures, and functions. The syntax for declaring a function is as FOLLOWS: function_name () { list of commands} Function_name is the name of your function, and that's what you'll use to call it from anywhere in your script. The function name must be followed by PARENTHESES, then a list of commands enclosed in braces. Example: The FOLLOWING example shows how function can be used: #!/bin/sh# Define your function here Hello () { echo "Hello World" } # Invoke your functionHello The following output will be displayed after execution: $./test.shHello World

Answer»

In other programming languages, shell FUNCTIONS are much like subroutines, procedures, and functions. The syntax for declaring a function is as FOLLOWS:

function_name () { list of commands}

Function_name is the name of your function, and that's what you'll use to call it from anywhere in your script. The function name must be followed by PARENTHESES, then a list of commands enclosed in braces.

Example:

The FOLLOWING example shows how function can be used:

#!/bin/sh# Define your function here Hello () { echo "Hello World" } # Invoke your functionHello

The following output will be displayed after execution:

$./test.shHello World

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