$DIR='/someDir';
$FILE='someFile';
$DIR2='/someOtherDir';
$out = `echo cp "$DIR/$FILE $DIR2/$FILE" . "_dev1"`;
print $out,$/;
#
# output
#
cp /someDir/someFile /someOtherDir/someFile . _dev1

##</code><code>##

`cp $DIR/$FILE $DIR2/${FILE}_dev1`