Shell Programming and Scripting

for i in *-DATE*;do mv $i $(echo $i | sed 's/\-DATE//');done

 
for i in *-DATE*.txt
do
  mv $i `echo $i | sed -n 's/-DATE//p'`
done

ls -1d *\-DATE* | while read filename1
do
        if [ -f "${filename1}" ]
        then
                filename2=$(echo "${filename1}"|sed -e "s/\-DATE//")
                if [ ! -f "${filename2}" ]
                then
                        # Remove echo when tested
                        echo mv "${filename1}" "${filename2}"
                else
                        echo "Filename already exists: ${filename2}"
                fi
        fi
done