Alma wiki

To see all available date/time fields in the file(s), use

exiftool -args -time:all *.jpg

Add the original Exif date to the beginning of the file name, and also move the file to a folder by year-month.

When using -testname instead of the real -filename, it only prints what it would do.

# set destination to a different path
dest=/path/to/by_month
 
# test what it would do
exiftool -d "$dest/%Y-%m/%Y-%m-%d_%%f-v%%02.c.%%e" '-testname<DateTimeOriginal' /path/to/process
 
# do it
exiftool -d "$dest/%Y-%m/%Y-%m-%d_%%f-v%%02.c.%%e" '-filename<DateTimeOriginal' /path/to/process

To also process subdirectories, add the -r (or -recurse) option

To only process files with a .jpg extension, use -ext jpg (case insensitive)

Example to rename all ".DNG" files in the current directory and it's subdirectories (without moving them):

exiftool -r -ext dng -d "%Y-%m-%d_%%f-v%%02.c.%%e" '-testname<DateTimeOriginal' .

Special variables in the -d specification:

• %%f : original filename (basename) without extension
• %%02.c : Numbering in case of duplicates: "00", "01", etc.
• %%e : extension

After the Exif rename, remove the unneeded "-v00" extension in the destination:

find "$dest" -iname "*-v00.jpg" -exec rename -v 's/-v00(\.jpg)/$1/i' {} +

exiftool '-FileModifyDate<DateTimeOriginal' * 

or

• -ext jpg : only .JPG files (case-insensitive)
• -r : Recursive (also process subfolders)

exiftool -r -ext jpg '-FileModifyDate<DateTimeOriginal' /path/to/process

For all .jpg files in current directory:

for f in *.jpg; do exiftool "-EXIF:UserComment<FILE:Comment" "$f"; done

• https://exiftool.org/filename.html and the ExifTool FAQ
• This guy's Exiftool Cheatsheet : https://gist.github.com/rjames86/33b9af12548adf091a26
• And this even better one: Exiftool tips & tricks