Tiny change killall_sglang.sh (#6596)

scripts/killall_sglang.sh

@@ -4,10 +4,7 @@
 nvidia-smi
 
 # Clean SGLang processes
-kill -9 $(ps aux | grep 'sglang::' | grep -v 'grep' | awk '{print $2}') 2>/dev/null
-kill -9 $(ps aux | grep 'sglang.launch_server' | grep -v 'grep' | awk '{print $2}') 2>/dev/null
-kill -9 $(ps aux | grep 'sglang.bench' | grep -v 'grep' | awk '{print $2}') 2>/dev/null
-kill -9 $(ps aux | grep 'sglang.data_parallel' | grep -v 'grep' | awk '{print $2}') 2>/dev/null
+pgrep -f 'sglang::|sglang\.launch_server|sglang\.bench|sglang\.data_parallel|sglang\.srt' | xargs -r kill -9
 
 # Clean all GPU processes if any argument is provided
 if [ $# -gt 0 ]; then