Array element access in bash MUST be enclosed with {}.

diff --git a/lustre-iokit/sgpdd-survey/sgpdd-survey b/lustre-iokit/sgpdd-survey/sgpdd-survey
index 16709e3..135a87e 100755 (executable)
--- a/lustre-iokit/sgpdd-survey/sgpdd-survey
+++ b/lustre-iokit/sgpdd-survey/sgpdd-survey
@@ -43,7 +43,7 @@ i=0
 devs=()
 for d in $scsidevs; do
     devs[$i]=`sg_map | awk "{if ($ 2 == \"$d\") print $ 1}"`
-    if [ -z "$devs[$i]" ]; then
+    if [ -z "${devs[$i]}" ]; then
        echo "Can't find SG device for $d"
        exit 1
     fi