Update cheatsheets

tldr/linux/caligula

@@ -6,6 +6,7 @@ source: https://github.com/tldr-pages/tldr.git
 # caligula
 
 > A user-friendly, lightweight TUI for disk imaging.
+> See also: `dd`.
 > More information: <https://github.com/ifd3f/caligula>.
 
 - Flash an ISO to a drive:

tldr/linux/cat

@@ -20,14 +20,18 @@ source: https://github.com/tldr-pages/tldr.git
 
 `cat {{path/to/file1 path/to/file2 ...}} >> {{path/to/output_file}}`
 
-- Write `stdin` to a file:
+- Write to a file interactively:
 
-`cat - > {{path/to/file}}`
+`cat > {{path/to/file}}`
 
 - Number all output lines:
 
 `cat {{[-n|--number]}} {{path/to/file}}`
 
-- Display non-printable and whitespace characters (with `M-` prefix if non-ASCII):
+- Display all characters, including tabs, line endings, and non-printing characters:
 
-`cat {{[-vte|--show-nonprinting -t -e]}} {{path/to/file}}`
+`cat {{[-A|--show-all]}} {{path/to/file}}`
+
+- Pass file contents to another program through `stdin`:
+
+`cat {{path/to/file}} | {{program}}`

tldr/linux/dd

@@ -6,6 +6,7 @@ source: https://github.com/tldr-pages/tldr.git
 # dd
 
 > Convert and copy a file.
+> See also: `caligula`.
 > More information: <https://www.gnu.org/software/coreutils/manual/html_node/dd-invocation.html>.
 
 - Make a bootable USB drive from an isohybrid file (such as `archlinux-xxx.iso`) and show the progress:

tldr/linux/koji

@@ -0,0 +1,33 @@
+---
+syntax: markdown
+tags: [tldr, linux]
+source: https://github.com/tldr-pages/tldr.git
+---
+# koji
+
+> Interact with kojihub.
+> More information: <https://docs.pagure.org/koji>.
+
+- Execute a koji subcommand:
+
+`koji {{subcommand}}`
+
+- Introduce yourself to test connectivity with koijhub:
+
+`koji moshimoshi`
+
+- Display help about global options:
+
+`koji --help`
+
+- Display help to get all available commands:
+
+`koji help`
+
+- Display help for a specific subcommand (like `build`, `tag-build`, `download-build`, `buildinfo`,`call`, etc.):
+
+`koji {{subcommand}} --help`
+
+- Display version:
+
+`koji version`

tldr/linux/waydroid

@@ -6,11 +6,11 @@ source: https://github.com/tldr-pages/tldr.git
 # waydroid
 
 > A container-based approach to boot a full Android system on a regular Linux system like Ubuntu.
-> More information: <https://docs.waydro.id>.
+> More information: <https://docs.waydro.id/usage/waydroid-command-line-options>.
 
 - Start Waydroid:
 
-`waydroid`
+`waydroid show-full-ui`
 
 - Initialize Waydroid (required on first run or after reinstalling Android):