up vote 1 down vote favorite 
array=('org.battery.plist' 'org.disk.plist' 'org.memory.plist');

echo "1) org.battery.plist"
echo "2) org.disk.plist"
echo "3) org.memory.plist"

echo "Enter selection(s) to load, separated by commas: "
read var

sudo launchctl load -w ${array[$var]}

Am I on the right track? I'm a little stuck. Can someone help?

If user inputs 1, 2, I expect the script to perform this below -

sudo launchctl load -w org.disk.plist
sudo launchctl load -w org.memory.plist
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91% accept rate
2  
try select ... in ... statement in bash. type help select in the terminal for help. – kev May 1 at 23:51
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3 Answers

up vote 1 down vote accepted

Try this,

IFS=","
for i in $var
do
    sudo launchctl load -w ${array[$i - 1]}
done

You will also need to check whether the input is out of array bounds and throw and error.

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thanks dpp ...appreciate the complete code. – Jim May 2 at 0:11
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up vote 1 down vote

There is a buildin in bash for such selects, surprisingly, called 'select':

select entry in ${array[@]}; 
do  
    sudo launchctl load -w $entry
done

Try help select.

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help select should work, as it's a shell built-in. man select will probably give you the manpage for the (unrelated) syscall. – ephemient May 2 at 0:31
@ephemient: Yes, thanks, concentration mistake – user unknown May 2 at 0:33
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up vote 0 down vote

This is better:

array=('org.battery.plist' 'org.disk.plist' 'org.memory.plist');

for (( i=0;i<"${#array[@]}";i++ )) ; do
    let n=i+1
    printf '%d) %s\n' $n "${array[$i]}"
done

IFS=, read -r -p 'Enter selection(s) to load, separated by commas: ' -a selections

for selection in "${selections[@]}" ; do
    let selection=selection-1
    sudo launchctl load -w "${array[$selection]}"
done
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