rename all files in folder code example

Example 1: cmd rename multiple files

# EXAMPLE: add "_zzz" to the name of each file found within the "G:\Deletable\" folder
for /d %F in ("G:\Deletable\*") do rename "%F" "%~nF_zzz%~xF"

# SYNTAX
# for <your-options> %F in ("<root-directory>\*") do rename "%F" "%~n#<your-text-to-add>%~xF"

Example 2: rename all files in a folder command line

for file in Picture*.jpg
 do
    mv "$file" "vacation-$file"
 done