Tag: operating systems
Questions Related to operating systems
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test $a -eq $b
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test $a -equal $b
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test $a = $b
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sh -c test $a == $b
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sleep 1 & echo $#
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test sleep 1
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sleep 1 & echo $?
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sleep 1 & echo $!
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$abc=xyz; echo $abc
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abc=xyz ; echo $abc
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export abc=xyz ; echo $abc
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abc=xyz; export abc=xyz ; echo $abc
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help cp
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man cp
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cp ?
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f2 cp
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mv new old
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none
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cp new old
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rm new old
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2> filename
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1> filename
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&> filename
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2> /dev/null
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rm filename
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less filename
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touch filename
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dl filename
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stop
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kill
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delete
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shupdown
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ls -a
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ls -all
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find -all
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find a