how to rename multiple files at once in linux code example

Example 1: rename multiple files linux

rename 's/old-name/new-name/' files

Example 2: rename multiple files in linux

for f in *.html; do
    mv -- "$f" "${f%.html}.php"
done

Example 3: example of renaming multiple files on linux

mv oldfile newfile

Example 4: bash rename multiple files

# Basic syntax using rename:
rename search_string replacement_string files

# Example usage:
# Say you have a directory containing the following files:
badly_name_file_1.txt
badly_named_file_1.txt
badly_named_file_2.txt
badly_named_file_3.png

rename txt png *txt # This would change all extensions to .png, e.g.:
badly_name_file_1.png
badly_named_file_1.png
badly_named_file_2.png
badly_named_file_3.png

# *txt returns all files that end in txt and then if txt is found in the
#	file name, it gets replaced with png

rename named speled badly* # This would change named to speled in all
#	files that begin with badly, e.g.:
badly_name_file_1.txt # This one is skipped because it doesn't have named
badly_speled_file_1.txt
badly_speled_file_2.txt
badly_speled_file_3.png