Update cheatsheets

tldr/speedtest

@@ -6,7 +6,8 @@ source: https://github.com/tldr-pages/tldr.git
 # speedtest
 
 > Official command-line interface for testing internet bandwidth using <https://speedtest.net>.
-> Note: some platforms link `speedtest` to `speedtest-cli`. If some of the examples in this page don't work, see `speedtest-cli`.
+> Note: some platforms link `speedtest` to `speedtest-cli` or other tools like `librespeed`, which can also be installed as `speedtest` on certain Linux distributions.
+> These command examples apply only to the official client.
 > More information: <https://www.speedtest.net/apps/cli>.
 
 - Run a speed test:

tldr/speedtest-rs

@@ -0,0 +1,33 @@
+---
+syntax: markdown
+tags: [tldr, common]
+source: https://github.com/tldr-pages/tldr.git
+---
+# speedtest-rs
+
+> An unofficial Rust-based tool for testing network speeds using speedtest.net, limited to HTTP Legacy Fallback.
+> More information: <https://github.com/nelsonjchen/speedtest-rs>.
+
+- Run a full speed test (download and upload):
+
+`speedtest-rs`
+
+- Display a list of `speedtest.net` servers sorted by distance:
+
+`speedtest-rs --list`
+
+- Run a download test only:
+
+`speedtest-rs --no-upload`
+
+- Run an upload test only:
+
+`speedtest-rs --no-download`
+
+- Generate a shareable link to the test results image:
+
+`speedtest-rs --share`
+
+- Display basic output information only:
+
+`speedtest-rs --simple`

tldr/typeset

@@ -5,29 +5,8 @@ source: https://github.com/tldr-pages/tldr.git
 ---
 # typeset
 
-> Declare variables and give them attributes.
-> More information: <https://www.gnu.org/software/bash/manual/bash.html#Bash-Builtins>.
+> This command is an alias of `declare`.
 
-- Declare a string variable with the specified value:
+- View documentation for the original command:
 
-`typeset {{variable}}="{{value}}"`
-
-- Declare an integer variable with the specified value:
-
-`typeset -i {{variable}}="{{value}}"`
-
-- Declare an array variable with the specified value:
-
-`typeset {{variable}}=({{item_a item_b item_c}})`
-
-- Declare an associative array variable with the specified value:
-
-`typeset -A {{variable}}=({{[key_a]=item_a [key_b]=item_b [key_c]=item_c}})`
-
-- Declare a readonly variable with the specified value:
-
-`typeset -r {{variable}}="{{value}}"`
-
-- Declare a global variable within a function with the specified value:
-
-`typeset -g {{variable}}="{{value}}"`
+`tldr declare`

tldr/until

@@ -0,0 +1,17 @@
+---
+syntax: markdown
+tags: [tldr, common]
+source: https://github.com/tldr-pages/tldr.git
+---
+# until
+
+> Simple shell loop that repeats until it receives zero as return value.
+> More information: <https://www.gnu.org/software/bash/manual/bash.html#index-until>.
+
+- Execute a command until it succeeds:
+
+`until {{command}}; do :; done`
+
+- Wait for a systemd service to be active:
+
+`until systemctl is-active --quiet {{nginx}}; do {{echo "Waiting..."}}; sleep 1; done; {{echo "Launched!"}}`