I'm usually pretty good with this stuff, but my current shell script project has got me stumped. Essentially, I've created a dynamic shell menu based upon files in a single folder. It's tree-based and uses a numeric and standardised naming format:
#ls -l
total 0
-rw-r--r-- 1 root eai 0 Oct 8 08:49 011_Functionality_Example.sh
-rw-r--r-- 1 root eai 0 Oct 8 08:49 012_Another_Example.sh
-rw-r--r-- 1 root eai 0 Oct 8 08:48 01_Menu_1
-rw-r--r-- 1 root eai 0 Oct 8 08:49 021_More_Functionality.sh
-rw-r--r-- 1 root eai 0 Oct 8 08:49 02_Menu_2
-rw-r--r-- 1 root eai 0 Oct 8 08:48 0_Main_Menu
My shell script works well, but at the moment I can only provide the user with the following to assist in menu selection:
Maybe using a multidimensional array will make it easier to achieve this objective? Or you can use one array to store the names as reference to the arrays containing the menu items. The sorting and positioning problem is solved then.
Massive thanks to all three responses - I will be using a combination of your suggestions in the final version. Here's how it looks for now for anyone who may need similar:
#!/bin/ksh
# Script Name : test.sh
# Purpose : Basic User Interface
# Origin Date : 02/10/07
# Version : 1.0
# Author :
# Description : Basic dynamic menu system for Unix scripts.
#===================================================
f_get_key()
#---------------------------------------------------
# Function to return the next keystroke.
#===================================================
{
oldstty=`stty -g`
stty -icanon -echo min 1 time 0
key=`dd bs=1 count=1 2>/dev/null`
stty "$oldstty"
}
#===================================================
f_head()
#---------------------------------------------------
# Function to clear the screen and draw the header.
#===================================================
{
if [ "$nomenu" = "1" ]; then
echo "===================================================="
echo "$*"
echo "===================================================="
else
clear
echo "####################################################"
echo "# _ _ _ #"
echo "# ___ _ __ ___ ___ | | _____| |_ ___ ___| |_ #"
echo "# / __| '_ \` _ \ / _ \| |/ / _ \ __/ _ \/ __| __| #"
echo "# \__ \ | | | | | (_) | < __/ || __/\__ \ |_ #"
echo "# |___/_| |_| |_|\___/|_|\_\___|\__\___||___/\__| #"
echo "# #"
echo "####################################################"
echo `date '+%d/%m/%y'`" "`date '+%H:%M'`
echo "===================================================="
echo
c_width=52
c_text="- $* - $current -"
c_width=$(( ($c_width + ${#c_text}) / 2 ))
printf "%${c_width}.${c_width}s\n" "$c_text"
echo
fi
}
#===================================================
f_foot()
#---------------------------------------------------
# Function to add the footer and request an input.
#===================================================
{
if [ "$nomenu" = "1" ]; then
echo
echo
else
echo
echo "===================================================="
echo " MAIN MENU: 0 | UP: RETURN | EXIT: x "
echo "===================================================="
f_get_key
fi
}
#===================================================
#---------------------------------- END OF FUNCTIONS
#---------------------------------------------------
# START OF MAIN PROGRAM ----------------------------
#===================================================
current=""
parent=""
key=""
nomenu=""
if [ "$1" != "" ]; then
current=$1
key=unset
else
current=0
fi
until [ "$key" = "x" ]
do
if [ "$current" = "0" ]; then
parent=0
else
parent=`echo $current | awk '{print substr($0,1,length($0)-1)}'`
fi
temp=$current$key"_*"
if [ -e $temp ]; then
current=$current$key
else
current=$current
fi
if [ "$key" = "" ]; then
current=$parent
elif [ "$key" = "0" ]; then
current=0
fi
temp=$current"_*"
title=`ls -l $temp | awk '{print $9}' | sed 's/^[0-9]*_//;s/_/ /g;s/.sh$//'`
temp=$current"?_*"
if [ -e $temp ]; then
f_head $title
ls -l $temp | awk '{print $9}' | sort -n | sed 's/^[0-9]*\([0-9]\)_/ \1) /;s/_/ /g;s/.sh$//'
f_foot
else
temp=$current"_*.sh"
f_head $title
if [ -x $temp ]; then
./$temp
else
echo "No associated executables ($temp) have been found!"
fi
f_foot
fi
done
clear
echo "...THANKS FOR USING THE SMOKETEST!"
echo
exit 0