find . -type f \( -iname "*.mp3" -o -iname "*.flac" -o -iname "*.wav" -o -iname "*.ogg" -o -iname "*.m4a" -o -iname "*.aac" \) -exec sh -c 'for f; do if ! ffmpeg -v error -i "$f" -f null - >/dev/null 2>&1; then echo "Broken: $f"; mkdir -p broken_media; base=$(basename "$f"); [ -e "broken_media/$base" ] && mv -- "$f" "broken_media/$(date +%s)_$base" || mv -- "$f" "broken_media/$base"; fi; done' sh {} +Remove broken audio files

find . -type f \( -iname "*.jpg" -o -iname "*.png" -o -iname "*.gif" -o -iname "*.jpeg" -o -iname "*.webp" -o -iname "*.svg" \) | sed 's|^\./|./photos/|' | awk -F'/' '{filename=$NF; gsub(/\.[^\.]+$/, "", filename); print "<img src=\"" $0 "\" alt=\"" filename "\">"}' > file.txt Image list command to generate HTML tags with alt attributes

ffmpeg -loop 1 -i f.png -i f.mp3 -c:v libx264 -tune stillimage -c:a aac -b:a 192k -pix_fmt yuv420p -shortest out.mp4 Create a video from a single image and audio

find . -name "*.png" -exec convert "{}" -fill white "{}" -opaque transparent "{}" -alpha off "{}" \; Convert PNG files to opaque images with white background

wget https://github.com/KostasSliazas/project-kitten/archive/refs/heads/main.zip Download files from the internet

pngquant --quality=45-70 --speed 1 --strip --force --ext .png *.png PNG Image optimize

convert -resize 50% -delay 10 -loop 0 image_{0..99}.jpg output.gif Create an animated GIF from resized images

find . -type f ! -name 'file.txt' -exec basename{} \; > file.txt Recursively list files without folders

ffmpeg -loop 1 -i picture.png -i audio.ogg -shortest output.mpeg Create a MPEG video from a single image and audio file

find . -name "node_modules" -type d -prune -exec rm -rf '{}' + Recursively remove node_modules

find . -type f ! -name 'file.txt' | sed 's|^\./||' > file.txt Recursively list files with folders

convert -delay 10 `ls -v` -loop 0{0100..0255}.png output.gif Create an animated GIF from sequential PNG files

sudo find -type d -name '*(1)*' -a -prune -exec rm -rf{} \; Recursively remove copied folders (1)

convert -resize 768x576 -delay 20 -loop 0 `ls -v` image.gif Resize images and create an animated GIF

find . -type f -name '*.jpg' -exec basename{} \; > file.txt Recursively list only file names with a specific extension

mogrify -background white -flatten -format jpg *.png Batch convert PNG to JPG with white background

find . -depth -type d -exec rmdir {} \; 2>/dev/null Silently removes directories only if they are empty after processing

mogrify -resample 72x72 -resize 256x256 *.JPG Resample and resize JPG images in batch

find . -type f ! -name 'file.txt' > file.txt Recursively list files without including file.txt

sudo systemctl restart NetworkManager Restart network

sudo apt update ; sudo apt upgrade -y Update & Upgrade System

find . -type f ! -name '*.txt' -print -print/-delete ALL except with file extension 'txt'

jpegoptim -f -s --strip-all *.jpg JPG Image optimize

grep "(root|nobody)" /etc/passwd Regular expressions to search in files (find one of two things)

sudo chmod -R 755 directoryname Change File/Directory Permissions to 755 in Linux

find . -type d -empty -print -print/-delete empty folders

sudo lshw -short -C memory Retrieves detailed information about the RAM

less data.zip > file.txt Archive file list to file

echo okay > filename Write 'okay' to file

mogrify -strip *.png Strip image metadata from PNG files

exiftool -all= *.png Remove all metadata from PNG files

find / -type d -ls Show directories

exiv2 rm image.jpg Remove image metadata

exiftool image.jpg List image metadata information

ls -1a > file.txt File list to file

cat -n /etc/hosts View Hosts File with Line Numbers

less -s filename Remove multiple blank lines

rm -rf folder Force and recursively remove all files and subdirectories

mkdir newdir Make a directory

lsusb | nl List usb devices with numbering

ps auxwww Show processes

free -ght Amount of free and used memory

lsblk List mounted devices

df -h Get the details of the file system

cd / Change into the root directory of the Linux file system

who Show who is logged in

pwd Show working directory (print)

cp Copy a file

mv Move or rename a file

ls List directory contents

cd Return to the home directory (use cd ~ or cd)