From 627f86392f082b9a42bd9efeb59e7ee9374932b3 Mon Sep 17 00:00:00 2001
From: Frederick Muriuki Muriithi
Date: Thu, 27 Jan 2022 10:37:03 +0300
Subject: Fix 'Bad substitution' issue

In posix shell, string indexing is undefined. This commit replaces the
string indexing with a more portable implementation.
---
 bin/genenetwork2 | 2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

diff --git a/bin/genenetwork2 b/bin/genenetwork2
index ce3678e4..7669a89a 100755
--- a/bin/genenetwork2
+++ b/bin/genenetwork2
@@ -59,7 +59,7 @@ else
     echo INFO: GN2 is running from a source tree
     GIT_HASH=$(git rev-parse HEAD)
     GIT_BRANCH=$(git rev-parse --abbrev-ref HEAD)
-    export GN_VERSION=$GN2_ID:$(cat $GN2_BASE_DIR/etc/VERSION)-$GIT_BRANCH-${GIT_HASH:0:9}
+    export GN_VERSION="${GN2_ID}:$(cat ${GN2_BASE_DIR}/etc/VERSION)-${GIT_BRANCH}-$(echo ${GIT_HASH} | cut -c1-9)"
 fi
 echo GN_VERSION=$GN_VERSION
 
-- 
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