Some useful single line linux commands

cmds.sh

# Fix date time of files and subdirectories inside the specified directory 
find ~/dir -print -exec touch -m {} \;

# Generate a video with a still image and audio
ffmpeg -r 1 -loop 1 -i bg.jpg -i audio.mp3 -c:v libx264 -tune stillimage -c:a copy -pix_fmt yuv420p -shortest still_img_vid.mp4

# Trim videos in hours:minutes:seconds format
ffmpeg -i video.mp4 -ss 00:01:00 -to 00:03:05 -c copy trimmed_video.mp4

# Get ssh public key from a private key
ssh-keygen -y -f key.pem > key.pub