{"type":"rich","version":1.0,"title":"How do I use a grep command to display lines that only have a space character?","width":1179,"html":"<a href=\"https://asciinema.org/a/6636\" target=\"_blank\"><img alt=\"How do I use a grep command to display lines that only have a space character?\" src=\"https://asciinema.org/a/6636.png\" width=\"1179\"></a>","height":1368,"author_name":"falsetru","author_url":"https://asciinema.org/~falsetru","provider_name":"asciinema","provider_url":"https://asciinema.org/","thumbnail_height":1368,"thumbnail_url":"https://asciinema.org/a/6636.png","thumbnail_width":1179}