GUI Updates script

[anon222]

Made some changes to the script.
Added: A check to see if any updates are available, if there are none, script pops up a dialog box saying 'No Updates Available'.
Changes: Script opens a list of available updates.
Note: The list of packages that have been kept back is not displaying.

Code:

#!/bin/bash
#-----------------------------------------------------------------------------------------
# Name: Linux Lite Updates
# Description: A GUI tool to easily install Updates in Linux Lite.
# Authors: Misko_2083, Jerry Bezencon
# Date: Nov 20th, 2014
# Website: https://www.freecinema2022.gq
#-----------------------------------------------------------------------------------------

# Kill off any package managers that may be running
if [ "$(pidof synaptic)" ]
then
    sudo killall -9 synaptic
else
    echo ""
fi

if [ -z "$(pgrep gdebi-gtk)" ]
then
    echo ""
else
    killall -9 gdebi-gtk
fi

# Linux Lite default dialog icon
ic="/usr/share/icons/zenity-llcc.png"

# Get list of available updated packages then populate them to /tmp/updateslist
zenity --question --title="Linux Lite Updates" --window-icon="/usr/share/icons/zenity-llcc.png" --text="We will now fetch the Updates list.\n\nClick Yes to continue or No to abort."
   if [ "$?" -eq "0" ];then

x=$( stdbuf -oL /bin/bash \-c '(sudo apt-get update \-y )' 2>&1 |
stdbuf -oL sed -n -e '/\[*$/ s/^/# /p' -e '/\*$/ s/^/# /p'|
zenity --progress --title="Updating package information..." --pulsate \
--width=600 --auto-close )


# Creates a list in /tmp/updateslist
LISTNAMES=$(apt-get --just-print upgrade 2>&1 | perl -ne 'if (/Inst\s([\w,\-,\d,\.,~,:,\+]+)\s\[([\w,\-,\d,\.,~,:,\+]+)\]\s\(([\w,\-,\d,\.,~,:,\+]+)\)? /i) {print "Name: $1 INSTALLED: $2 AVAILABLE: $3\n"}' | tee /tmp/updateslist)

# A check here to see if any updates are available, if there are none, script pops up dialog box saying 'No Updates Available', removes /tmp/updateslist
if [  -z "$(cat /tmp/updateslist)"  ]; then
     zenity --info --window-icon="/usr/share/icons/zenity-llcc.png" --title="Linux Lite Updates" \
        --text="No Updates Available"
    rm /tmp/updateslist
    exit 0
fi

# Erase existing available info
sudo dpkg --clear-avail



else
       exit 0
fi

# Get the list from /tmp/updateslist and call the zenity dialog to show update list
UPDATELIST=(`cat /tmp/updateslist | awk '{print "TRUE\n",$2,"\n",$4,"\n",$6}' `)
LIST=$(zenity --list --checklist --column="pick" --column="NAME" --column="INSTALLED" --column="AVAILABLE" "${UPDATELIST[@]}" --separator=" " --text="Text goes here." --width=800 --height=700)
   if [ "$?" -eq "0" ];then

# Main window dialogue.
INSTALLER_TITLE="Linux Lite Updates
-----------------------------------------------------------------------------------------------------------

Please make sure all software installation programs like
<b>Synaptic Package Manager</b> and <b>Gdebi</b> are closed before proceeding.

When you click on <b>Yes</b>, this window will close and the updates will begin.

-----------------------------------------------------------------------------------------------------------
Click on <b>Yes</b> to continue or <b>No</b> to cancel the updates process."

# Halt updates script if user selects Cancel
else
       exit 0
fi

# Continue script if no halt
INSTALL_ICON="/usr/share/icons/zenity-llcc.png"
APPNAME="Linux Lite"
       
        zenity --question --title="$APPNAME Updates" --window-icon="${INSTALL_ICON}" --text="${INSTALLER_TITLE}"

                if [ "$?" -eq "0" ]; then

x=$( stdbuf -oL /bin/bash \-c '(sudo apt-get install $LIST \-y )' 2>&1 | tee /var/log/llupdates.log |
stdbuf -oL sed -n -e '/\[*$/ s/^/# /p' -e '/\*$/ s/^/# /p'|
zenity --progress --title="Updating..." --pulsate \
--width=600 --auto-close )

                                if [ "${PIPESTATUS[0]}" -ne "0" ]; then
                       
                                        zenity --error \
                                        --title="Error" --text="$APPNAME Updates have failed."
                                        exit 0
                                fi

                else

                                        exit 0
                fi

PROCEED=$(zenity --question --title="$APPNAME Updates" --window-icon=/usr/share/icons/zenity-llcc.png --text="Updates have finished installing.\n\nWould you like to view the $APPNAME Updates log?"; echo $?)
if [ ${PROCEED} -eq 1 ]; then
   zenity --info --title="$APPNAME Updates" --window-icon="${INSTALL_ICON}" --text="$APPNAME Updates Complete."
   exit;
else
   zenity --text-info --title="Updates Log" --width=700 --height=300 --filename="/var/log/llupdates.log"
fi

exit 0