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  • 2017护士工作思路>ַ:mxsty.ccm1x1s1t1y1-20221128   O

    ǰλ: ҳ > ϵͳά > Unix´֪ͨ

    Unix´֪ͨ

    ʱ:12-16 19:42:

    DOSWindows£иӲҪǽһĿµķϻӽĿһϣڱݡUnixУȴ޸ܴͬĻ

    ԼUnixҵ(뱸)УͨһСʰ޺󣬳ӦUnix֪ͨtarcpiocompressͽʹ֮DOSµĽӲͬUnixͨԡ

    UnixУȾcpiotarĵϴһϿcompressϿֶεġcpiotarעõİ취ͷ

    һcpio

    1.ϻ߽Ŀ

    ζ״

    A)ӽĿ

    find /usr/lib -printcpio -o/u0/temp1.cpio

    /usr /libĿµӽĿһϿΪ/u0/temp1.cpio

    -oѡĿµһӽĿӦfindĿ-printҵһӽĿijƺţcpio

    B)ûкӽĿĴ

    ls /usr/libcpio -o/u0/temp1.cpio

    /usr/libĿµ(ûкӽĿµ)һϿΪ/u0/temp1.cpio

    C)һϴ

    Ӧı֪ͨgrep뵯ܹɨȡһ͵ϴcpiopio -o/u0/temp1.cpio

    ls /usr/libgrep \.c$cpio -o/u0/temp1.cpio

    Ϊҵ/usr/libĿ.cͷԴ

    磺ls /usr/libgrep abcdcpio -o/u0/temp1.cpio Ϊҵ/usr/libĿкabcdַԴ

    ls /usr/libgrep -v abcdcpio -o/u0/temp1.cpioΪҵ/usr/libĿûк abcd ַԴ-vѡgrep֪ͨеɨַĴ

    ˣɳӦUnixĵһЩ֪ͨ׳ϵĴ

    2.

    ϴʵֺ󣬼Unixеcompress֪ͨ(/usr/bin)ϡıϣʽϸߣɴ81%

    compress /u0/temp1.cpioϿ/u0/temp1.cpioΪ/u0/temp1.cpio.Z(.Zϳ/u0/temp1.cpio )

    3.ѹ

    uncompress /u0/temp1.cpio.ZԭΪ/u0/temp1.cpio

    4.չ

    ԭĿչԺڽĿ¡ԾھģչʱҲԾھĴ濪չ;ھģչʱҲھĴ濪չݡΪھӦӦĽĿٿչ

    cd /u1

    cpio -id/u0/tmp1.cpio/u0/temp1.cpioѹ/u1(ٶtemp1.cpioԾھ)

    uѡcpio -iud/u0/temp1.cpioнڸǣǿڸǡ

    cpio -id/u0/temp1.cpio .c չе.cϣDOSеPkzipӲPkunzip -d temp1.zipܡ

    5.֣

    cpio -it/u0/temp1.cpio [.c] ϿڵϳƺţDOSеPkzipӲPkunzip -vbnm temp1.zipܡ

    tar

    1.ϻ߽Ŀ

    tar -cvf /u0/temp2.tar /usr/lib

    /usr/libĿµӽĿһϿΪ/u0/temp2.tar

    tar -cvf /u0/temp2.tar /usr/lib .c .f

    /usr/libĿµ.c .f(ûкӽĿ)

    ⣺ָ.c .f.ʱûкӽĿָΪ.ߣӽĿ

    2.

    ͬϣcompress /u0/temp2.tarΪ/u0/temp2.tar.Z

    3.ѹ

    uncompress /u0/temp2.tar.ZԭΪ/u0/temp2.tar

    4.չ

    tar -xvf /u0/temp2.tar

    ԾھģʱԾھĴ濪չ;ھģʱھĴ濪չݡ

    ָչϵĽĿ

    5.֣

    tar -tvf /u0/temp2.tar Ͽڵϳƺšָʱϵľ

    ˵֪ͨȱǷ

    1)tarȱcpioûԽݴ洢ֱһеUnixжͨã÷

    2)cpioΪɾܣʹʱȡᡢɨޱǿԽݣܱرϡ

    ⣬֪ͨcompressDOSµPkzipĽҪЩԣһȽĿ527ıϹ15.7MBUnixcompressСΪ 2.1MB;෴ϿDOSPkzipСΪ1.4MB

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