# Simple file backup 
# If env  BKFILE_DIR was set all datata  backed into   that directory, othewise back gous into current directory 

##########################################
#!/bin/bash
#######  back up file with  new file name as a time stemp ######
FILE=$1

if [[ -f $FILE ]]; then
  new_name="${FILE}`date +%F%H%M`.bak"
    cp $FILE $new_name
  if [[ ! -z $BKFILE_DIR ]]; then
    mv $new_name $BKFILE_DIR/
   fi
else
    echo "Usage: $0 FileName "
fi