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How to execute different code depending on the command line arguments in a bash script

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command line arguments within a bash scripts

Example of a simple script:


#apply a function with a parameter
function apply
    echo "$request"

#the first argument
case $1 in 
        #1) first code
	apply "first"
        #2) second code
	apply "second"
        #3) third code
	apply "third"
	echo "bad argument"

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