Ithasbeendeterminedthatprintjobsfromanapplicationarenotbeingremovedfromthesystemaftertheyhavebeenprinted.Toremovethesejobsfromthe／var／spooldirectory,whichcronentrywillremovefilesmorethan7daysold?()A.find/var/spool/lpd/qdir-mtime-7-typef-execrm-f{}\B.find-

题目
Ithasbeendeterminedthatprintjobsfromanapplicationarenotbeingremovedfromthesystemaftertheyhavebeenprinted.Toremovethesejobsfromthe／var／spooldirectory,whichcronentrywillremovefilesmorethan7daysold?()

A.find/var/spool/lpd/qdir-mtime-7-typef-execrm-f{}\

B.find-name/var/spool/*-frm{}\

C.find-name/var/spool/lpd/*-execrm{}\

D.find/var/spool/lpd/qdir-mtime+7-typef-execrm-f{}\

相似考题

1.Which directory does the Junos OS use to store syslog information by default?()A. /var/messagesB. /var/syslogC. /var/tmpD. /var/log

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更多“Ithasbeendeterminedthatprintjobsfromanapplicationarenotbeingremovedfromthesystemaftertheyhavebeenprinted.Toremovethesejobsfromthe／var／spooldirectory,whichcronentrywillremovefilesmorethan7daysold?() ”相关问题

  • 第1题：

    根据下面的定义，F0（3+4)的输出结果是_______（注意没有空格）#define F1（var) printf（"var=%d", var) #define F0（var) F1（var * var)

    根据下面的定义，F0（3+4)的输出结果是_______（注意没有空格）#define F1（var) printf（"var=%d", var) #define F0（var) F1（var * var)


    C

  • 第2题：

    （X,Y)是二维随机向量，下列命题与Cov（X,Y)=0等价的是

    A．E(XY)=E(X)E(Y)

    B．Var(XY)= Var(X)Var(Y)

    C．Var(X+Y)=Var(X)−Var(Y)

    D．Var(X−Y)=Var(X) −Var(Y)


    E ( XY )= E ( X ) E ( Y )

  • 第3题：

    下列哪个函数表达式可以计算变量var1,var2和var3的平均值？ （）

    A．mean(var1, var3)

    B．mean(var1-var3)

    C．mean(of var1-var3)

    D．mean(of var1,var3)


    mean(of var1-var3)

  • 第4题：

    设随机变量X的方差存在，Var（X)＞0，则以下结论正确的是

    A．Var(X) ＞ Var(1－X)

    B．Var(X) ＜ Var(1－X)

    C．Var(X) = Var(1－X)

    D．Var(X) + Var(1－X) = 1


    C

  • 第5题：

    22、设随机变量X的方差存在，Var（X)＞0，则以下结论正确的是

    A．Var(X) ＞ Var(1－X)

    B．Var(X) ＜ Var(1－X)

    C．Var(X) = Var(1－X)

    D．Var(X) + Var(1－X) = 1


    Var( X ) = Var(1 － X )

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