Update cheatsheets

jar

@@ -0,0 +1,25 @@
+---
+syntax: markdown
+tags: [tldr, common]
+source: https://github.com/tldr-pages/tldr.git
+---
+# jar
+
+> Java applications/libraries packager.
+> More information: <https://docs.oracle.com/javase/tutorial/deployment/jar/basicsindex.html>.
+
+- Recursively archive all files in the current directory into a .jar file:
+
+`jar cf {{file.jar}} *`
+
+- Unzip .jar/.war file to the current directory:
+
+`jar -xvf {{file.jar}}`
+
+- List a .jar/.war file content:
+
+`jar tf {{path/to/file.jar}}`
+
+- List a .jar/.war file content with verbose output:
+
+`jar tvf {{path/to/file.jar}}`