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Use FFMPEG to cut and concatenate MP4 files. TIL note about ffmpeg. Use when working with ffmpeg and the user mentions cut cat mp4 or related topics.
Codex または Claude でインストール この Prompt をコピーして Codex、Claude、または他のアシスタントに貼り付けると、Skill ページを確認してインストールできます。
SOC 職業分類に基づく
Back up a data directory to a remote host automatically whenever it changes, using inotify + rsync as a systemd user service. TIL note about linux. Use when working with linux and the user mentions event-driven backup, inotify rsync, watch-and-sync, or scheduled/continuous backups.
Show CPU temperature in the tmux status bar via the Dracula theme, with dynamic color based on the value, on Linux (desktops, servers, SBCs). Update-safe — uses /sys/class/thermal/ sysfs and does not patch the dracula plugin. Use when working with tmux on any Linux box and the user mentions adding a CPU temp segment to the tmux status line.
Show CPU temperature in the tmux status bar via the Dracula theme, with dynamic color based on the value (cold/normal/warm/hot), in an update-safe way. macOS (Apple Silicon) version using smctemp. Use when working with tmux, dracula/tmux, or the user mentions adding a CPU temp segment to the tmux status line on a Mac.
Install the Pi coding agent. TIL note about ai. Use when working with ai and the user mentions pi coding agent or related topics.
Resize video file using ffmpeg. TIL note about ffmpeg. Use when working with ffmpeg and the user mentions resize video or related topics.
Configure Ghostty to pass opt as alt. TIL note about ghostty. Use when working with ghostty and the user mentions config alt or related topics.
| name | ffmpeg-cut-cat-mp4 |
| description | Use FFMPEG to cut and concatenate MP4 files. TIL note about ffmpeg. Use when working with ffmpeg and the user mentions cut cat mp4 or related topics. |
Cut out a portion of a video (starting at 40m 14s, 2m duration) and save it in another file:
ffmpeg -i input_video.mp4 -ss 00:10:14 -t 00:02:00 output_video.mp4
Concatenate several input MP4 files into one (from SO):
$ cat mylist.txt
file '/path/to/file1'
file '/path/to/file2'
file '/path/to/file3'
$ ffmpeg -f concat -safe 0 -i mylist.txt -c copy output.mp4