Using Terminal in MacOS, what is the command to add a particular string to the name of several .pdf file. E.g.: if I have
firstfile.pdf
anotherfile.pdf
documentthree.pdf
I want them all to be renamed
addedstring_firstfile.pdf
addedstring_anotherfile.pdf
addedstring_documentthree.pdf
Could you please try following(don't have mac os so didn't test on it).
for file in *.pdf
do
mv "$file" "string_$file"
done