Cloud Power: Boosting Efficiency with zsh Command Line Hacks

Sometimes I run a command and immediately realize I only need to change one small part of it. For example, say I just converted a video with ffmpeg: ffmpeg -i calligraphy01.mp4 -c:v libx264 -c:a aac calligraphy_good_01.mp4 Then I want to run the same command for the next file: ffmpeg -i calligraphy0