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

tldr/linux/rsh

@@ -0,0 +1,21 @@
+---
+syntax: markdown
+tags: [tldr, linux]
+source: https://github.com/tldr-pages/tldr.git
+---
+# rsh
+
+> Execute commands on a remote host.
+> More information: <https://www.gnu.org/software/inetutils/manual/html_node/rsh-invocation.html>.
+
+- Execute a command on a remote host:
+
+`rsh {{remote_host}} {{ls -l}}`
+
+- Execute a command on a remote host with a specific username:
+
+`rsh {{remote_host}} -l {{username}} {{ls -l}}`
+
+- Redirect `stdin` to `/dev/null` when executing a command on a remote host:
+
+`rsh {{remote_host}} --no-err {{ls -l}}`