#!/bin/sh
######################################################################
# Gary Keen						version	0.0.4
# 01/02/21 | 1/22/21 | 1/25/21 | 2/4/2021
#
# Description:
#	A script to put in place all the files,permissions,directories
#	needed to convert systemd startup to systemV startup.
#
# /root/StartupScripts -- All startup script that do not start with READ
#			will get executed
# /usr/lib/systemd/system/mystartup.service -- Unit file
# /etc/rc.d/init.d/StartUp --- Must be executable
#
#
# Notes/Updates:
#	-- Changed the way the init script is built. Tail the bottom of this script.
#	   I know not very elegant but the $variables and exe code wouldn't show up.
#	-- Ubuntuized for future use and the nart.   1/25/2021
#
######################################################################
#
#=========================  What OS am I  ===========================#
cat /etc/*release* |grep ID_LIKE | awk -F"=" '{print $2}' | grep rhel >/dev/null 2<&1
EXIT1=$?
cat /etc/*release* |grep ID_LIKE | awk -F"=" '{print $2}' | grep debian >/dev/null 2<&1
EXIT2=$?

#========================= Create variables =========================#
#
ROOTDIR=/root/StartupScripts
REDME=$ROOTDIR/README.txt
if [ $EXIT1 = 0 ]
then
INITSCRPT=/etc/rc.d/init.d/StartUp
UNITFILE=/usr/lib/systemd/system/mystartup.service
fi
#
if [ $EXIT1 = 0 ]
then
echo "[Unit]
Description=My startup scripts
After=network.target

[Service]
ExecStart=/etc/rc.d/init.d/StartUp &

[Install]
WantedBy=multi-user.target
WantedBy=graphical.target" > $UNITFILE
fi
#
if [ $EXIT2 = 0 ]
then
INITSCRPT=/etc/init.d/StartUp
UNITFILE=/lib/systemd/system/mystartup.service
fi
#
if [ $EXIT2 = 0 ]
then
echo "[Unit]
Description=My startup scripts
After=network.target

[Service]
ExecStart=/etc/init.d/StartUp &

[Install]
WantedBy=multi-user.target
WantedBy=graphical.target" > $UNITFILE
fi
#
if [ $EXIT1 = 1 -a $EXIT2 = 1 ]
then
echo
echo " Unknown OS --- exiting..... "
fi


echo
echo "This is the init script and the unit file that will be used, respectfully."
echo
echo "init script"
echo $INITSCRPT
echo "unit file"
echo $UNITFILE
echo
echo "Displaying the unit file to be used."
echo
cat $UNITFILE
echo
echo "Press enter."
read ANSW0

#
#======================== Build functions ============================#
#
contin () {
echo "Press enter to continue."
read ANSW0
}
#
enablescript () {
systemctl enable mystartup.service
systemctl status mystartup.service
}
#
readme () {
echo "

Anything dropped in this directory that DOSE NOT begin with
the word READ. Will be executed during startup.

Directory and file location:
startup script directory = $ROOTDIR
	Drop script here to have them executes at startup.
unit file = $UNITFILE
initscript = $INITSCRPT" >$REDME

}
#
open () {
echo
echo "This script creates a directory in /root call StartupScripts"
echo "Anything dropped in that directory that DOSE NOT begin with"
echo "the word READ. Will be executed during startup."  
echo
echo "This script creates a systemd unit file and a script to be"
echo "executed from that unit file."
echo
contin
}
#
crtfiledirs () {
mkdir $ROOTDIR
sleep 1
touch $INITSCRPT
chmod 755 $INITSCRPT
touch $UNITFILE
}
#
initscript () {


cat $0 | tail -19 >$INITSCRPT

}
#
# rhelunitfile () {
# echo "[Unit]
# Description=My startup scripts  
# After=network.target

# [Service]
# ExecStart=/etc/rc.d/init.d/StartUp & 

# [Install]
# WantedBy=multi-user.target 
# WantedBy=graphical.target" > $UNITFILE
# }
#
# ubununitfile () {
# echo "[Unit]
# Description=My startup scripts  
# After=network.target

# [Service]
# ExecStart=/etc/init.d/StartUp & 

# [Install]
# WantedBy=multi-user.target 
# WantedBy=graphical.target" > $UNITFILE
# }
#
crtlinks () {
# ln -s /etc/rc.d/init.d/StartUp $ROOTDIR/README_startup_init_script 
ln -s $INITSCRPT $ROOTDIR/README_startup_init_script 
ln -s $UNITFILE $ROOTDIR/README_mystartup_unit_file
# ln -s /usr/lib/systemd/system/mystartup.service $ROOTDIR/README_mystartup_unit_file
echo
echo "Drop executable script in the /root/StartupScripts to have them executed at startup."
echo
}
#
#
#============================ Execute functions =============================#
#
echo
echo "I'm not sure this script is ready for prime time yet."
echo "Use at your own risk until I can confirm it works as it should."
echo
contin


open
crtfiledirs
initscript
sleep 1
enablescript
crtlinks
readme



#------EOF--------DO NOT CHANGE ANYTHING BELOW THIS LINE-------EOF----------#

#!/bin/sh
######################################################################
# Gary Keen
#
#
# One startup to rule them all
#
#
#
#
######################################################################
SCRIPTDIR=/root/StartupScripts

for A in `ls $SCRIPTDIR | grep -v READM`
do
echo $A
$SCRIPTDIR/$A
done