Shell Programming and Scripting

#! /bin/bash

#Usage: bash Dynamic_Menu.bash /home/user/target_directory

#Section 1 - read in directory listing, store to $array[@]
i=0
while read line
do
    array[ $i ]=$i")  \"$line\""
    (( i++ ))
done < <(find $1) #consume directory path provided as argument

printf "\nInitial Array\n"
printf '%s\n' "${array[@]}"

read -rsp "Press any key to continue..." -n1 key

#Section 2 - read in file contents from array[@] files, temporarily store to $entries[@] and append to array[@]

filecount=0
for file in $array
do
	echo $filecount ": " $file
    count=0
    while IFS=";" read -r line || [[ -n "$line" ]]; do #remember to set the text delimiter
	    count=$((count + 1)); #Increment counter for menu options
	    entries[$count]=$count" \"$line\"" #Store line content into current OPTIONS array index.
    done < "$file" #this line reads the filename argument into the loop
	array[$filecount]="$array[$filecount] - $entries[1]"
	filecount= $((filecount + 1));
done

printf "\nAppended Array\n"
printf '%s\n' "${array[@]}"

read -rsp "Press any key to continue..." -n1 key

#Section 3 - Take array and feed it into a bash dialog menu as options for the user.
cmd=(dialog "Select options:" 22 76 16)
options=(${array[@]})
choices=$("${cmd[@]}" "${options[@]}" 2>&1 >/dev/tty)

#Section 4 - Create a case that can handle the dynamic output from the dialog. Not yet started

IFS=$'\n'
for FN in *; do [ -f $FN ] && { read LN < $FN; TMP=$TMP$'\n'"$FN $LN"; }; done
PS3="Choose a package for installation:"
select CHC in $TMP; do echo $CHC; done

# Split only on newlines
OLDIFS="$IFS"
IFS=$'\n'

# Store listing in array
array=( $(find "$1" -type f) )

IFS="$OLDIFS" # Return to normal splitting behavior

# Make a dialog of choices
select X in "${array[@]}"
do
        # In this loop, X will be set to the file selected
        break
done

for FN in *

for FN in $1*

#! /bin/bash
#usage: Dynamic_Menu.bash /home/user/target_directory
declare -a array

i=1 #Index counter for adding to array
j=1 #Option menu value generator

while read line
do		
#Dynamic dialogs require an array that has a staggered structure
#array[1]=1
#array[2]=First_Menu_Option
#array[3]=2
#array[4]=Second_Menu_Option

	array[ $i ]=$j
	(( j++ ))
	array[ ($i + 1) ]=$line
        (( i=($i+2) ))
	
done < <(find $1 -type f) #consume file path provided as argument

##uncomment for debug
#printf '%s\n' "${array[@]}"
#read -rsp "Press any key to continue..." -n1 key

#Build the menu with dynamic content
TERMINAL=$(tty) #Gather current terminal session for appropriate redirection
HEIGHT=20
WIDTH=76
CHOICE_HEIGHT=16
BACKTITLE="Back_Title"
TITLE="Dynamic Dialog"
MENU="Choose a file:"

CHOICE=$(dialog --clear \
                --backtitle "$BACKTITLE" \
                --title "$TITLE" \
                --menu "$MENU" \
                $HEIGHT $WIDTH $CHOICE_HEIGHT \
                "${array[@]}" \
                2>&1 >$TERMINAL)