So I have a bash script which will scan a directory and run a function on a selected input. It seems that for some reason, the key is not setting from the array properly. What am I missing? All help is much appreciated! EDIT: As a side note, I can run the commands separately and get results. Here is the

Bash Array Key from User Input

So I have a bash script which will scan a directory and run a function on a selected input.

    echo -n "
-------------------------------------------------------
            `hostname` Menu
-------------------------------------------------------

Choose your desired Host:
`
i=1
for D in /var/www/*.*/;
    do   
        if [[ -d $D ]]; then
            Hosts[$i]=$D
            echo $i') ' $D
            i=$(($i+1))
        fi
    done
    `
"
read -p "Select: " Input
    Directory="${Hosts[$Input]}";
    ChangePerms;

It seems that for some reason, the key is not setting from the array properly.

Choose your desired Host:
1)  /var/www/example1.com/
2)  /var/www/example2.com/
+ read -p 'Select: ' Input
Select: 1
+ Directory=
+ ChangePerms
+ true

What am I missing? All help is much appreciated!

EDIT: As a side note, I can run the commands separately and get results.

root@web005:/# i=1
root@web005:/# for D in /var/www/*.*/;
>     do
>         if [[ -d $D ]]; then
>             Hosts[$i]=$D
>             echo $i') ' $D
>             i=$(($i+1))
>         fi
>     done
1)  /var/www/example1.com/
2)  /var/www/example2.com/
root@web005:/# read -p "Select: " Input
Select: 1
root@web005:/# Directory="${Hosts[$Input]}";
root@web005:/# echo $Directory
/var/www/example1.com/
root@web005:/#

Here is the working code for those who get stuck like me:

echo -n "
-------------------------------------------------------
            `hostname` Menu
-------------------------------------------------------

Choose your desired Host:

"
i=1
for D in /var/www/*.*/;
    do   
        if [[ -d $D ]]; then
            Hosts[$i]=$D
            echo $i') ' $D
            i=$(($i+1))
        fi
    done
read -p "Select: " Input
    Directory="${Hosts[$Input]}";
    ChangePerms;

Answer

Your problem is:

`
i=1
for D in /var/www/*.*/;
    do   
        if [[ -d $D ]]; then
            Hosts[$i]=$D
            echo $i') ' $D
            i=$(($i+1))
        fi
    done
`

which executes in a subshell. Therefore, the remainder of your script has no idea what Hosts is. (in other words, Hosts is empty in the main body of your script). Fill Hosts before you present your menu.

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Answer