rename all the files in a folder code example

Example 1: change all file to another

for f in *.txt; do
    mv -- "$f" "$(basename -- "$f" .txt).text"
done

Example 2: batch rename folder

REM # | EXAMPLE (changes the ChangeMyName folder's name to NameChanged)
rename "C:/Users/JacquesK/ChangeMyName" "NameChanged"

REM # | SYNTAX
REM # | rename "<folder-to-change-the-name-of>" "<new-folder-name>"