timeout: edit page (#13332)

Co-authored-by: spageektti <git@spageektti.cc>
Co-authored-by: K.B.Dharun Krishna <kbdharunkrishna@gmail.com>

pages/common/timeout.md

@@ -7,6 +7,18 @@
 
 `timeout 3s sleep 10`
 
-- Send a signal to the command after the time limit expires (SIGTERM by default):
+- Send a [s]ignal to the command after the time limit expires (`TERM` by default, `kill -l` to list all signals):
 
-`timeout --signal {{INT}} {{5s}} {{sleep 10}}`
+`timeout --signal {{INT|HUP|KILL|...}} {{5s}} {{sleep 10}}`
+
+- Send [v]erbose output to `stderr` showing signal sent upon timeout:
+
+`timeout --verbose {{0.5s|1m|1h|1d|...}} {{command}}`
+
+- Preserve the exit status of the command regardless of timing out:
+
+`timeout --preserve-status {{1s|1m|1h|1d|...}} {{command}}`
+
+- Send a forceful `KILL` signal after certain duration if the command ignores initial signal upon timeout:
+
+`timeout --kill-after={{5m}} {{30s}} {{command}}`