diff --git a/tldr/katana b/tldr/katana
index c1db7ce6..c6fb9008 100644
--- a/tldr/katana
+++ b/tldr/katana
@@ -7,7 +7,7 @@ source: https://github.com/tldr-pages/tldr.git
 
 > A fast crawler focused on execution in automation pipelines offering both headless and non-headless crawling.
 > See also: `gau`, `scrapy`, `waymore`.
-> More information: <https://docs.projectdiscovery.io/tools/katana/running>.
+> More information: <https://docs.projectdiscovery.io/opensource/katana/usage>.
 
 - Crawl a list of URLs:
 
diff --git a/tldr/lpoptions b/tldr/lpoptions
index 367357c1..4193ed10 100644
--- a/tldr/lpoptions
+++ b/tldr/lpoptions
@@ -11,7 +11,7 @@ source: https://github.com/tldr-pages/tldr.git
 
 - Set the default printer:
 
-`lpoptions -d {{printer[/instance]}}`
+`lpoptions -d {{printer}}/{{instance}}`
 
 - List printer-specific options of a specific printer:
 
diff --git a/tldr/lpq b/tldr/lpq
index 1a8787c1..e4047a48 100644
--- a/tldr/lpq
+++ b/tldr/lpq
@@ -22,7 +22,7 @@ source: https://github.com/tldr-pages/tldr.git
 
 - Show the queued jobs of a specific printer or class:
 
-`lpq -P {{destination[/instance]}}`
+`lpq -P {{destination}}/{{instance}}`
 
 - Show the queued jobs once every n seconds until the queue is empty:
 
diff --git a/tldr/lprm b/tldr/lprm
index 631b8ccb..f8138ce2 100644
--- a/tldr/lprm
+++ b/tldr/lprm
@@ -15,7 +15,11 @@ source: https://github.com/tldr-pages/tldr.git
 
 - Cancel a job of a specific server:
 
-`lprm -h {{server[:port]}} {{job_id}}`
+`lprm -h {{server}} {{job_id}}`
+
+- Cancel a job of a specific server in a specific port:
+
+`lprm -h {{server}}:{{port}} {{job_id}}`
 
 - Cancel multiple jobs with a encrypted connection to the server:
 
@@ -27,4 +31,4 @@ source: https://github.com/tldr-pages/tldr.git
 
 - Cancel the current job of a specific printer or class:
 
-`lprm -P {{destination[/instance]}}`
+`lprm -P {{destination}}/{{instance}}`
diff --git a/tldr/npm-docs b/tldr/npm-docs
new file mode 100644
index 00000000..754a2e2f
--- /dev/null
+++ b/tldr/npm-docs
@@ -0,0 +1,17 @@
+---
+syntax: markdown
+tags: [tldr, common]
+source: https://github.com/tldr-pages/tldr.git
+---
+# npm docs
+
+> Open the documentation for one or more packages in the default web browser.
+> More information: <https://docs.npmjs.com/cli/npm-docs>.
+
+- Open a specific package's documentation page:
+
+`npm docs {{package}}`
+
+- Open documentation for multiple packages at once:
+
+`npm docs {{package1 package2 ...}}`
diff --git a/tldr/poetry-env b/tldr/poetry-env
new file mode 100644
index 00000000..d7a14477
--- /dev/null
+++ b/tldr/poetry-env
@@ -0,0 +1,30 @@
+---
+syntax: markdown
+tags: [tldr, common]
+source: https://github.com/tldr-pages/tldr.git
+---
+# poetry-env
+
+> Manage virtualenvs associated with a Poetry project.
+> See also: `asdf`.
+> More information: <https://python-poetry.org/docs/cli/#env>.
+
+- Print the command to activate a virtualenv:
+
+`poetry env activate`
+
+- Display information about the current environment (-p or -e will display the environment's path or executable):
+
+`poetry env info {{[-p|--path]}} {{[-e|--executable]}}`
+
+- List all virtualenvs associated with the current project (optionally showing the full path):
+
+`poetry env list --full-path`
+
+- Remove specific or all virtualenvs associated with the current project:
+
+`poetry env remove python {{path/to/executable|environment_name}} | poetry env remove --all`
+
+- Activate or create a virtualenv for the project using the specified python executable:
+
+`poetry env use python {{path/to/executable}}`
diff --git a/tldr/rails-routes b/tldr/rails-routes
index 389fd23c..770c41fb 100644
--- a/tldr/rails-routes
+++ b/tldr/rails-routes
@@ -14,7 +14,7 @@ source: https://github.com/tldr-pages/tldr.git
 
 - List all routes in an expanded format:
 
-`rails routes --expanded`
+`rails routes {{[-E|--expanded]}}`
 
 - List routes partially matching URL helper method name, HTTP verb, or URL path:
 
diff --git a/tldr/tsc b/tldr/tsc
index 6f7a5ee7..16cef127 100644
--- a/tldr/tsc
+++ b/tldr/tsc
@@ -8,21 +8,25 @@ source: https://github.com/tldr-pages/tldr.git
 > TypeScript compiler.
 > More information: <https://www.typescriptlang.org/docs/handbook/compiler-options.html>.
 
-- Compile a TypeScript file `foobar.ts` into a JavaScript file `foobar.js`:
+- Initialize a TypeScript project:
 
-`tsc {{foobar.ts}}`
+`tsc --init`
+
+- Compile a TypeScript file into a JavaScript file with the same name:
+
+`tsc {{path/to/file.ts}}`
 
 - Compile a TypeScript file into JavaScript using a specific target syntax (default is `ES3`):
 
-`tsc --target {{ES5|ES2015|ES2016|ES2017|ES2018|ESNEXT}} {{foobar.ts}}`
+`tsc {{[-t|--target]}} {{ES5|ES2015|ES2016|ES2017|ES2018|ESNEXT|...}} {{path/to/file.ts}}`
 
 - Compile a TypeScript file into a JavaScript file with a custom name:
 
-`tsc --outFile {{output.js}} {{input.ts}}`
+`tsc --outFile {{path/to/output_file.js}} {{path/to/input_file.ts}}`
 
-- Compile all `.ts` files of a TypeScript project defined in a `tsconfig.json` file:
+- Compile all `.ts` files of a TypeScript project defined in a `tsconfig.json` file (`--build` can be omitted to build the project in the current working directory):
 
-`tsc --build {{tsconfig.json}}`
+`tsc {{[-b|--build]}} {{path/to/tsconfig.json}}`
 
 - Run the compiler using command-line options and arguments fetched from a text file:
 
@@ -34,4 +38,4 @@ source: https://github.com/tldr-pages/tldr.git
 
 - Run the compiler in watch mode, which automatically recompiles code when it changes:
 
-`tsc --watch`
+`tsc {{[-w|--watch]}}`