useful-command-lines.sh

### [.] ALWAYS OPEN CHROMIUM IN PRIVATE MODE
###-----------------------------------------

# N.B. | First install { AdBlock }, { Adblock Plus } and { Adblock for Youtube } extensions and 
#      | Allow them to be run in private mode

$ defaults write org.chromium.Chromium IncognitoModeAvailability -integer 2 # / 0
$ defaults write com.brave.Browser IncognitoModeAvailability -integer 2



### [.] YOUTUBE-DL COMMANDS
###-----------------------------------------

# Download video
youtube-dl {video URL}

# Extract audio from video
youtube-dl --extract-audio --audio-format mp3 {video URL}



### [.] FFMPEG COMMANDS
###-----------------------------------------

# Cut video (from the 5th minute for a duration of 10s)
ffmpeg -ss 00:05:00.0 -i "input.mkv" -c copy -t 00:00:10.0 "output.mkv"

# Export file metadata to tempfile
ffmpeg -i "path/to/my/file.ext" -f ffmetadata ~/Documents/__tempfile

# Delete a specific tag
ffmpeg -i "path/to/my/file.mp3" -metadata artist="" "path/to/my/file.mp3"

# Delete ALL metadata in a file
ffmpeg -i "path/to/my/file.ext" -map 0:a -codec:a copy -map_metadata -1 "path/to/save/naked__file.ext"

# Export cover artwork in MP3 file
ffmpeg -i "path/to/my/file.mp3" "path/to/save/artwork.jpg"

# Add cover artwork to MP3 file
ffmpeg -i "path/to/my/file.mp3" -i "path/to/my/artwork.jpg" -c copy -map 0 -map 1 -metadata:s:v title="Cover (front)" "path/to/save/covered__file.mp3"

# Add metadata in MP3 file
ffmpeg -i "path/to/my/file.mp3" -metadata artist="The Artist" -metadata track="2/10" "path/to/my/file.mp3"

# Common FFMPEG tags
(TPE1) artist
(TIT2) title
(TPE2) album_artist
(TALB) album
(TYER) date
(TRCK) track
(TCON) genre
(TENC) encoded_by
(TCOP) copyright
(TCOM) composer
(TPOS) disc


# Convert MKV to MP4
for i in *.mkv; do
  ffmpeg -i "$i" -strict experimental -c:v copy -c:a aac -b:a 192k "${i%.*}.mp4"
done



### [.] IMAGE-MAGICK COMMANDS
###-----------------------------------------

# Convert picture in another format
convert "path/to/my/picture.png" "path/to/my/picture.jpg"

# Resize picture
convert "path/to/my/picture.jpg" -resize "300x300" "path/to/my/picture.jpg"



###  === Liste le contenu d'une archive
tar -tf achive.tar.bz2

###  === Création d'une archive
tar -jcvf achive.tar.bz2 ./folder

###  === Ajout de fichiers à une archive
tar -jrvf achive.tar.bz2 ./folder/

###  === Extraction du contenu d'une archive
tar -jxvf achive.tar.bz2 ./dest_dir



### [.] MPLAYER COMMANDS
###-----------------------------------------

# Repeat a song
mplayer --loop 5 song.mp3

# Shuffle a playlist
cd ~/Music
find ./Music/Media.localized/ -type f -iname \*.mp3 > playlist.txt
mplayer -shuffle -playlist playlist.txt



### [.] HOMEBREW COMMANDS
###-----------------------------------------

# Update Homebrew and formulas
brew update && brew upgrade

# Search formula
brew search "{pattern}"

# Clean up Homebrew cache
brew cleanup

# Homebrew diagnostic
brew doctor

# Get installed Homebrew and Cask formulas
brew list
brew leaves
brew cask list

# Get installed Homebrew formula with dependencies
brew deps --tree --installed



### [.] UNIX COMMANDS
###-----------------------------------------

echo -e `whoami` && echo -e `date`

# List folder content in a tree
tree ~/Documents/

# Get processes informations (CPU, MEMORY, etc)
top -o mem

# Open file with Atom (example)
open -a Atom "path/to/my/file.ext"

# Find files with specific extension/pattern
sudo find ~ -name "*.json"

# Get files/folders sizes
du -h ~/Documents/

# Create symlink to backup folder using Dropbox
ln -s ~/Calibre\ Library/ ~/Dropbox/
# OR, https://stackoverflow.com/questions/24200924/run-a-script-only-at-shutdown-not-log-off-or-restart-on-mac-os-x

# Disable SPOTLIGHT
sudo mdutil -a -i off

# Delete Spotlight indexed files database
sudo rm -rf /.Spotlight-V100/*

# Empty trash
rm -rf ~/.Trash && mkdir ~/.Trash





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