이 시도

#!/bin/bash

BASEDIR=/home

# error codes
E_OK=0
E_NOK=1

function handle_error
{

CODE=$1
ACTION=$2
INV=$3

# INV means to invert the handling logic

if [ -z $INV ]; then
  if [ $CODE -ne 0 ]; then
    echo "error: $ACTION"
    exit $E_NOK
  fi
else
 if [ $CODE -eq 0 ]; then
    echo "error: $ACTION"
    exit $E_NOK
  fi
fi

  return $E_OK
}


function print_usage()
{

  echo "usage: reset-homedir.sh USERNAME"

}
# target user and target dir
TUSER=$1
TDIR=$BASEDIR/$TUSER

if [ -z $TUSER ]; then
  print_usage
  exit 0
fi

getent passwd $TUSER >& /dev/null
RC=$?
handle_error $RC "user $TUSER does not exist"

TGROUP="`id -gn $1`"

if [ ! -d $TDIR ]; then
  echo "error: target directory $TDIR does not exist"
  exit 1
fi

# you don't want to delete user mounted stuff do you?
MOUNTS="`mount |grep $TDIR`" >& /dev/null
RC=$?
handle_error $RC "there are mounted filesystems below $TDIR" TRUE


ps -u $TUSER >& /dev/null
RC=$?
handle_error $RC "user $TUSER is logged in" TRUE

echo
echo "$TDIR will be reset to the default state - ALL DATA WILL BE LOST"
echo
echo "-- press ENTER to continue or CTRL+C to abort --"
read dummy

# we did our best to check for unwanted situations
rm -rf $TDIR
# creates a new one
cp -R /etc/skel $TDIR
chown -R $TUSER:"$TGROUP" $TDIR

echo Done.

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