Move pages under tldr, lint run.sh, update docs

tldr/ffprobe

@@ -0,0 +1,29 @@
+---
+syntax: markdown
+tags: [tldr, common]
+source: https://github.com/tldr-pages/tldr.git
+---
+# ffprobe
+
+> Multimedia stream analyzer.
+> More information: <https://ffmpeg.org/ffprobe.html>.
+
+- Display all available stream info for a media file:
+
+`ffprobe -v error -show_streams {{input.mp4}}`
+
+- Display media duration:
+
+`ffprobe -v error -show_entries format=duration -of default=noprint_wrappers=1:nokey=1 {{input.mp4}}`
+
+- Display the frame rate of a video:
+
+`ffprobe -v error -select_streams v:0 -show_entries stream=avg_frame_rate -of default=noprint_wrappers=1:nokey=1 {{input.mp4}}`
+
+- Display the width or height of a video:
+
+`ffprobe -v error -select_streams v:0 -show_entries stream={{width|height}} -of default=noprint_wrappers=1:nokey=1 {{input.mp4}}`
+
+- Display the average bit rate of a video:
+
+`ffprobe -v error -select_streams v:0 -show_entries stream=bit_rate -of default=noprint_wrappers=1:nokey=1 {{input.mp4}}`