Organize your Photos by Date Using Exiftool

Find all photos without date information

$ exiftool -filename -filemodifydate -createdate -r -if '(not $datetimeoriginal) and $filetype eq "JPEG"' .

Set last created and modified to a specific date

$ find . -name "*.jpg" | while read filename;
exiftool "-AllDates=1986:11:05 12:00:00" "$filename";

Copy of the originals will be created. Remove *.jpg_original if everything went fine or add -overwrite_original parameter.


by one year

$ exiftool "-AllDates+=1:0:0 00:00:00" .

Rename your files to contain the date and time

they will be suffixed tith -N if they have the same date and time

$ exiftool '-FileName<DateTimeOriginal' -d "%Y%m%d_%H%M%S%%-c.%%e" *.jpg
$ exiftool '-FileName<DateTimeOriginal' -d "%Y-%m-%d %H.%M.%S%%-c.%%e" *.jpg

Copy your photos in a folder structure organised by datetime

exiftool '-Directory<CreateDate' -d ~/Dropbox/Photos/%y/%y%m -r .

Git Sheet

Release (aka get the last version without the .git folder)

git archive --remote HEAD | tar xvf -
git archive --remote HEAD sub-folder | tar xvf

Add remote origin and set upstream to and existing git repository

git remote add origin
git push -u origin master # set the upstream branch to master

Change remote origin

Remove the current origin and add a new one as above

git remote remove origin

Delete remote tag

git push origin --delete refs/tags/TAG_NAME

Delete remote branch

git push origin --delete refs/heads/BRANCH_NAME

See commit log and changes before merging into working copy

git fetch origin
Check the log and/or the changes
git log -p master..origin/master
git log origin/master
git merge origin/master

Log Graph

$ git log --pretty=format:'%h %ad | %s%d [%an]' --graph --date=short

My .gitconfig

name = liv
email =
 autocrlf = input
 safecrlf = true
 whitespace = trailing-space,space-before-tab
 co = checkout
 ci = commit
 st = status --short --branch
 br = branch
 hist = log --pretty=format:'%h %ad | %s%d [%an]' --graph --date=short
 type = cat-file -t
 dump = cat-file -p
 info = remote show origin
 please = push --force-with-lease
 default = simple
 statusHints = false


ReplayGain your music using mp3gain

ReplayGain is the name of a technique invented to achieve the same perceived playback loudness of audio files. Read more on Hydrogenaudio.

Set all files to 92db – this is the most used loudness now-a-days (it’s recommended also in Serato DJ software and most streaming platforms seems to use same value). You might want to use 89db if you are listening on a Hi-Fi system – in this case just ignore the -d 3 option.

The suggested loudness is ~89, so we add 3.

mp3gain -d 3 -c -p -r *.mp3


mp3gain -s r -d 3 -c -p -r *.mp3

-s r this will ignore the replaygain information already stored in the file

-c will ignore clipping warning, use -k to lower the gain to not clip

-p preserve original timestamp of files

-r gain per track (as opposed to per album), it’s good for collections, best of, etc.

recursively apply gain to all your mp3 files

  • it works also for file names with spaces 🙂
find . -iname '*.mp3' -print0 | xargs -0 mp3gain -d 3 -c -p -r