How to copy and add prefix to file names in one step from another directory?

Question

I want to copy and rename multiple files from one directory to another. Particularly, I want something like this:

/tmp/tmp.XXX/aaa.original.txt
/tmp/tmp.XXX/bb5.original.txt
/tmp/tmp.XXX/x2x.original.txt

copied into

/root/hello/dump-aaa.txt
/root/hello/dump-bb5.txt
/root/hello/dump-x2x.txt

I've tried some things like these which don't work:

• cp /tmp/tmp.XXX/*.original.txt /root/hello/*.txt
• find /tmp/tmp.XXX/ -name '*.original.txt' | xargs -i cp /root/hello/dump-{}.txt
• for f in /tmp/tmp.XXX/*.original.txt; do cp -- "$f" "/root/hello/dump-$f.txt"; done

Usually the above codes result in error:

cp: cannot create regular file '/root/hello/dump-/tmp/tmp.XXX/aaa.original.txt.txt': No such file or directory

Answer 1

bash solution:

for f in /tmp/tmp.XXX/*.original.txt; do 
    bn="${f##*/}"   # extracting file basename
    cp "$f" "/root/hello/dump-${bn%%.*}.txt"
done