hlocal

#!/bin/bash

#check oplion by command first character
op=$(echo $(basename $0 ) | cut -b 1)

# parent process list
plist=("$$")

# add parent processes
ppid() {
  plist=("$(ps h -o ppid -p $1)" "${plist[@]}")
}

# get process command
pcom() {
  ps h -o command -p $1
}

# create process list until init
while [ ${plist[0]} -gt 1 ]
do
  ppid $plist
done

# check process before init is ssh or not
echo $(pcom ${plist[1]}) | grep ssh > /dev/null
if [ $? -eq 0 ]
then
  echo "You are in ssh session and cannot shutdown `hostname` by this command"
else
  sudo shutdown -${op} now
fi