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				@@ -48,7 +48,7 @@ function update_software() { 
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				 function install_component() { 
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				   local COMPONENT=$1 
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				   COMPONENT_CMD=$(command -v $COMPONENT) 
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				-  if [ -n "${COMPONENT_CMD}"]; then 
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				+  if [ -n "${COMPONENT_CMD}" ]; then 
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				     return 
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				   fi 
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				@@ -71,9 +71,9 @@ VER="$(curl -s https://api.github.com/repos/v2ray/v2ray-core/releases/latest | g 
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				 CUR_VER="$(/usr/bin/v2ray/v2ray -version | head -n 1 | cut -d " " -f2)" 
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				-if [[ "$VER" == "$CUR_VER"]]; then 
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				+if [[ "$VER" == "$CUR_VER" ]]; then 
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				   echo "Lastest version $VER is already installed. Exiting..." 
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				-  return 
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				+  exit 
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				 fi 
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				 ARCH=$(uname -m) 
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