Update cheatsheets

exa

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+---
+syntax: markdown
+tags: [tldr, common]
+source: https://github.com/tldr-pages/tldr.git
+---
+# exa
+
+> A modern replacement for `ls` (List directory contents).
+> More information: <https://the.exa.website>.
+
+- List files one per line:
+
+`exa --oneline`
+
+- List all files, including hidden files:
+
+`exa --all`
+
+- Long format list (permissions, ownership, size and modification date) of all files:
+
+`exa --long --all`
+
+- List files with the largest at the top:
+
+`exa --reverse --sort={{size}}`
+
+- Display a tree of files, three levels deep:
+
+`exa --long --tree --level={{3}}`
+
+- List files sorted by modification date (oldest first):
+
+`exa --long --sort={{modified}}`
+
+- List files with their headers, icons, and Git statuses:
+
+`exa --long --header --icons --git`
+
+- Don't list files mentioned in `.gitignore`:
+
+`exa --git-ignore`