Update cheatsheets

tldr/linux/drm_info

@@ -0,0 +1,17 @@
+---
+syntax: markdown
+tags: [tldr, linux]
+source: https://github.com/tldr-pages/tldr.git
+---
+# drm_info
+
+> Dump information about DRM devices.
+> More information: <https://manned.org/drm_info>.
+
+- Dump DRM information:
+
+`drm_info`
+
+- Dump DRM information in [j]SON format:
+
+`drm_info -j`

tldr/linux/fbgrab

@@ -0,0 +1,17 @@
+---
+syntax: markdown
+tags: [tldr, linux]
+source: https://github.com/tldr-pages/tldr.git
+---
+# fbgrab
+
+> Generate screenshots directly from the framebuffer.
+> More information: <https://github.com/GunnarMonell/fbgrab#fbgrab>.
+
+- Generate a screenshot from the current TTY:
+
+`sudo fbgrab {{path/to/file}}.png`
+
+- Specify which TTY to capture:
+
+`sudo fbgrab -c {{number}} {{path/to/file}}.png`

tldr/linux/ss

@@ -10,7 +10,7 @@ source: https://github.com/tldr-pages/tldr.git
 
 - Show all TCP/UDP/RAW/UNIX sockets:
 
-`ss {{[-a|--all]}} {{-t|-u|-w|-x}}`
+`ss {{[-a|--all]}} {{--tcp|--udp|--raw|--unix}}`
 
 - Filter TCP sockets by states, only/exclude: