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-rw-r--r--toys/posix/kill.c5
1 files changed, 3 insertions, 2 deletions
diff --git a/toys/posix/kill.c b/toys/posix/kill.c
index f8e86b67..ee68980b 100644
--- a/toys/posix/kill.c
+++ b/toys/posix/kill.c
@@ -67,8 +67,9 @@ void kill_main(void)
char *s = NULL;
if (signum>=0) s = num_to_sig(signum&127);
- puts(s ? s : "UNKNOWN");
- } else sig_to_num(NULL);
+ if (isdigit(**args)) puts(s ? s : "UNKNOWN");
+ else printf("%d\n", signum);
+ } else list_signals();
return;
}