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--- a/src/utils/execmd.h
+++ b/src/utils/execmd.h
@@ -177,6 +177,14 @@
      * @return true if found
      */
     static bool which(const string& cmd, string& exe, const char* path = 0);
+
+    /**
+     * Execute command and return stdout output in a string
+     * @param cmd input: command and args
+     * @param out output: what the command printed
+     * @return true if exec status was 0
+     */
+    static bool backtick(const std::vector<std::string> cmd, std::string& out);
 
     friend class ExecCmdRsrc;
  private: