Your (short) script seems not to do the job as a nautilus script, but here on Ubuntuforums, I found one that works quite nicely. It has some more advanced options, as described in the poster's comment on Ubuntuforums:
"Note: This is non-recursive by default, so it will only operate on the specific folder and files that you have selected. If you want recursive behavior - uncomment the "#RECURSIVE=-R;" line. It is left out be default since the risk of messing up ownerships is pretty big when something like this gets so easy. "
How to use
The script below is copied without a change. Paste it in an empty file and save it in
~/.local/share/nautilus/scripts (the script's comment mentions
~/.gnome2/nautilus-scripts, but that seems outdated) , make it executable, and after log out / in, it will be available in the context menu (under
Note: you need gksu to be installed to use it
#Title=Make owned by current user
#Title[se]=Gör nuvarande användare till ägare
# Make owned by current user - Makes the selected files owned by the current user with group
# being the user's primary group (the first in the output from the "groups" command)
# Put this script into the Nautilus script dir (~/.gnome2/nautilus-scripts) and make it executable.
# Right-click on files in Nautilus and choose Scripts -> Make owned by current user
# This operates non-recursively by default, so it will only operate on the specific folder and files that
# you have selected. If you want recursive behavior - uncomment the "#RECURSIVE=-R;" line further down.
# It is left out be default since the risk of messing up ownerships is pretty big when something
# like this gets so easy.
# Acknowledements and version history:
# v20080131 - Fredrik Wollsén
# License GPL v3
# Feel free to provide feedback on this script here:
# Suggestions for improvements:
# - Show a zenity dialogue box to dynamically decide whether or not the command
# should be run recursively or not.
# - Show a zenity progress bar for the execution of the command.
# THIS SOFTWARE IS PROVIDED BY THE AUTHOR ``AS IS'' AND ANY EXPRESS OR
# IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED
# WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
# ARE DISCLAIMED. IN NO EVENT SHALL THE AUTHOR BE LIABLE FOR ANY
# DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
# DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE
# GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS
# INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER
# IN CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR
# OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN
# IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
GROUP=`groups | sed -r 's/ .*//g'`;
#RECURSIVE=-R; # Uncomment this to make the ownerships be implemented resursively
# default to a group name identical to the username if a group is not found (is this case even possible? this if-statement could be totally useless - but: better safe than sorry...)
if [ "$GROUP" == "" ] ; then
gksudo -- chown -v $RECURSIVE $USER:$GROUP "$@"| zenity --text-info --height=100 --width=300;