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The Linux Printing HOWTO http://www.resoo.org/docs/printing/printing-howto.txt
Grant Taylor <gtaylor+pht@picante.com>
v3.30, 19 November 1999
This is the Linux Printing HOWTO, a collection of information on how
to generate, preview, print and fax anything under Linux ......
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1.²»Ìáʾɾ³ýĿ¼ rm -rf ${dir}
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rpm -qa | grep ${appname}
rpm -e ${rpmname}
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echo "3 + 4 - 5 * 5 - 7 " | bc
echo "3 + 4 - 5 * 5 - 7 " | bc | read myresult
4.²é¿´½ø³Ì
ps -ef £ü grep ${tname}
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