变量举例 [jypan@qtm213 ~]9 round=world [jypan@qtm213 ~]echo $round [jypan@qtm213 ~]9 name=Peter Piper [jypan@qtm213 ~]9 name="Peter piper" [jypan@qtm213 ~]9 echo Sname [jypan@qtm213 ~]9 x- [jypan@qtm213 ~]9 echo $x [jypan@qtm213 ~file.bak="gHOME/junk"5 变量举例