Update cheatsheets

tldr/pampick

@@ -0,0 +1,14 @@
+---
+syntax: markdown
+tags: [tldr, common]
+source: https://github.com/tldr-pages/tldr.git
+---
+# pampick
+
+> Pick images out of a multi-image Netpbm stream.
+> See also: `pamfile`, `pamsplit`.
+> More information: <https://netpbm.sourceforge.net/doc/pampick.html>.
+
+- Execute a shell command on each image in a Netpbm file:
+
+`pampick {{image_number1 image_number2 ...}} < {{path/to/image.pam}} > {{path/to/output.pam}}`