Sometimes you end up having files that can't be opened or renamed in Dolphin (re. KDE bug #165044) because their name contains silly characters in some silly encoding. This is what Dolphin might offer to do in such a situation... if it were able to detect that such a situation had occured (which it isn't, according to the heated discussion under the linked-to bug report)
Remove silly characters from every filename in the current directory? (~/bin/unfuck-names)
#!/bin/bash
for a in *.*
do
b=$(echo "$a"|iconv -c) # strip characters that aren't valid under the default encoding
if [ "$a" != "$b" ] # check if any characters have been removed
then
c=1
while [ -f "$b" ] # check if the new filename is vacant
do
b="${b%.*}$c.${b##*.}" # generate a new name otherwise
c=$(( c + 1 ))
done
mv -n "$a" "$b"
fi
done