Move pages under tldr, lint run.sh, update docs

tldr/linux/runcon

@@ -0,0 +1,26 @@
+---
+syntax: markdown
+tags: [tldr, linux]
+source: https://github.com/tldr-pages/tldr.git
+---
+# runcon
+
+> Run a program in a different SELinux security context.
+> With neither context nor command, print the current security context.
+> More information: <https://www.gnu.org/software/coreutils/runcon>.
+
+- Determine the current domain:
+
+`runcon`
+
+- Specify the domain to run a command in:
+
+`runcon -t {{domain}}_t {{command}}`
+
+- Specify the context role to run a command with:
+
+`runcon -r {{role}}_r {{command}}`
+
+- Specify the full context to run a command with:
+
+`runcon {{user}}_u:{{role}}_r:{{domain}}_t {{command}}`