expect: add page (#3441)

pages/linux/expect.md

@@ -0,0 +1,16 @@
+# expect
+
+> Script executor that interacts with other programs that require user input.
+> More information: <https://linux.die.net/man/1/expect>.
+
+- Execute an expect script from a file:
+
+`expect {{path/to/file}}`
+
+- Execute a specified expect script:
+
+`expect -c "{{commands}}"`
+
+- Enter an interactive REPL (use `exit` or Ctrl + D to exit):
+
+`expect -i`