Update cheatsheets

tldr/linux/sprof

@@ -0,0 +1,30 @@
+---
+syntax: markdown
+tags: [tldr, linux]
+source: https://github.com/tldr-pages/tldr.git
+---
+# sprof
+
+> Read and display shared object profiling data.
+> Note: Requires profile data generated via the `$LD_PROFILE` environment variable.
+> More information: <https://manned.org/sprof>.
+
+- Generate a flat profile and call graph (default output):
+
+`sprof {{path/to/library.so}} {{path/to/library.so.profile}}`
+
+- Generate a flat profile with counts and ticks:
+
+`sprof {{[-p|--flat-profile]}} {{path/to/library.so}} {{path/to/library.so.profile}}`
+
+- Generate a call graph:
+
+`sprof {{[-q|--graph]}} {{path/to/library.so}} {{path/to/library.so.profile}}`
+
+- Print call pairs and their usage counts:
+
+`sprof {{[-c|--call-pairs]}} {{path/to/library.so}} {{path/to/library.so.profile}}`
+
+- Use profile data from current directory (auto-detected by soname):
+
+`sprof {{path/to/library.so}}`

tldr/linux/steamos-readonly

@@ -8,6 +8,10 @@ source: https://github.com/tldr-pages/tldr.git
 > Set the readonly status of the filesystem.
 > More information: <https://gitlab.com/users/evlaV/projects>.
 
+- View the filesystem mutability status:
+
+`steamos-readonly status`
+
 - Set the filesystem to be mutable:
 
 `sudo steamos-readonly disable`
@@ -15,3 +19,7 @@ source: https://github.com/tldr-pages/tldr.git
 - Set the filesystem to be read only:
 
 `sudo steamos-readonly enable`
+
+- Toggle the filesystem mutability:
+
+`sudo steamos-readonly toggle`

tldr/linux/steamosctl

@@ -0,0 +1,25 @@
+---
+syntax: markdown
+tags: [tldr, linux]
+source: https://github.com/tldr-pages/tldr.git
+---
+# steamosctl
+
+> Control the SteamOS system.
+> More information: <https://gitlab.com/evlaV/steamos-manager>.
+
+- Change to desktop mode:
+
+`steamosctl switch-to-desktop-mode`
+
+- Change to gamemode:
+
+`steamosctl switch-to-game-mode`
+
+- Change whether the system opens gamemode or desktop during login:
+
+`steamosctl set-default-login-mode {{game|desktop}}`
+
+- Display help:
+
+`steamosctl`