Update cheatsheets

tldr/~

@@ -0,0 +1,21 @@
+---
+syntax: markdown
+tags: [tldr, common]
+source: https://github.com/tldr-pages/tldr.git
+---
+# Tilde
+
+> Expand to a directory.
+> More information: <https://gnu.org/software/bash/manual/bash.html#Tilde-Expansion>.
+
+- List the current user's home directory contents:
+
+`ls ~`
+
+- List the home directory contents of another user:
+
+`ls ~{{username}}`
+
+- List the contents of the previous directory you were in:
+
+`ls ~-`