Added the shebang line at the top of file.

Signed-off-by: Bhaskar Chowdhury <unixbhaskar@gmail.com>
---
 tools/perf/tests/shell/common/patterns.sh | 1 +
 1 file changed, 1 insertion(+)

diff --git a/tools/perf/tests/shell/common/patterns.sh b/tools/perf/tests/shell/common/patterns.sh
index 21dab25c7b7f..807c1bc7bb52 100644
--- a/tools/perf/tests/shell/common/patterns.sh
+++ b/tools/perf/tests/shell/common/patterns.sh
@@ -1,3 +1,4 @@
+#!/bin/sh
 # SPDX-License-Identifier: GPL-2.0

 export RE_NUMBER="[0-9\.]+"
--
2.49.1