Fix spelling mistakes in bash command lines

gistfile1.sh

# BEGIN: Put this in ~/.bashrc

function err_handle {
  if [ "$?" != 0 ]
  then
    if echo "$previous_command" | grep -q '\<hlep\>'
    then
      NEW_COMMAND="$(echo "$previous_command" | sed 's/\<hlep\>/help/g')"
      echo -ne "Command failed.  Retry with '$NEW_COMMAND' (y/n)? "
      read p
      if [ "$p" = "y" ]
      then
        eval $NEW_COMMAND
      fi
    fi
  fi
}

trap 'err_handle' ERR
trap 'previous_command=$this_command; this_command=$BASH_COMMAND' DEBUG

# END: Put this in ~/.bashrc

# Example:

/bin/ls --hlep