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答案：答案：A If the current directory is/tmp,which command will display the available file system space in the users current directory?A.df .B.du$tmpC.du .D.df$tmp答案：答案：C Which command displays the total block usage for all files in a directory?A.dcB.dfC.du -sD.ls -al答案：答案：C Which command is used to show the filesystem space statistics for/tmp?A.ls /tmpB.du /tmpC.df /tmpD.fsck /tmp答案：答案：A Which command will display the amount of available space in all mounted filesystems?A.df B.df /C.duD.du /