tcsh: add page (#7421)

pages/common/tcsh.md

@@ -0,0 +1,28 @@
+# tcsh
+
+> C shell with file name completion and command line editing.
+> More information: <https://manned.org/tcsh>.
+
+- Start an interactive shell session:
+
+`tcsh`
+
+- Start an interactive shell session without loading startup configs:
+
+`tcsh -f`
+
+- Execute a [c]ommand:
+
+`tcsh -c "{{command}}"`
+
+- Execute a script:
+
+`tcsh {{path/to/script.tcsh}}`
+
+- Check a script for syntax errors:
+
+`tcsh -n {{path/to/script.tcsh}}`
+
+- Print the version:
+
+`tcsh --version`