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单选题
Which command will run myscript and redirect stdout and sterr to /tmp/myoutput？（）
A
./myscript >> /tmp/myoutput
B
./myscript 2>&1 /tmp/myoutput
C
./myscript > /tmp/myoutput 2>&1
D
./myscript > /tmp/myoutput &1>2
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Asystemadministratorwantstorunascriptcalledmyscript,butdoesnotwanttoseetheerrorsthatmightbegeneratedbythescript.Howwouldthisbeaccomplished?()
A./usr/local/bin/myscript/dev/nullB./usr/local/bin/myscript/dev/nullC./usr/local/bin/myscript2/dev/nullD./usr/local/bin/myscript1/dev/null
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Whichcommandwillrunmyscriptandredirectstdoutandsterrto／tmp／myoutput?()
A../myscript/tmp/myoutputB../myscript21/tmp/myoutputC../myscript/tmp/myoutput21D../myscript/tmp/myoutput12
考题
Auserreportsthattheycannotcdto/tmp/application.Asystemadministratorenteredthefollowingcommand：（1）ls-ld/tmp/application（2）drw-r--r--4rootsystem512Jan1514：09applicationWhatisthemostlikelycauseoftheproblem？（）A.The/tmp/applicationshouldbegloballywritable.B.The/tmp/applicationdirectoryshouldbeexecutable.C.The/tmp/applicationdirectoryshouldbeownedbytheuser.D.The/tmp/applicationdirectoryshouldhavethestickybitset.
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An operator needs to run a script which will write standard output and standard error to different files. Which of the following commands will successfully perform this task?()
A. myscript.ksh 1/tmp/log/script.log 2/tmp/log/script.errB. myscript.ksh $1/tmp/log/script.log $2/tmp/log/script.errC. myscript.ksh 1/tmp/log/script.log 21 /tmp/log/script/errD. myscript.ksh 21 /tmp/log/script.log 2 /tmp/log/script.err
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在linux系统中，在/tmp下创建一个空文件file的命令是（）。A、mkdir /tmp/fileB、make /tmp/fileC、touch /tmp/fileD、mv /tmp/file
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在linux系统中，当前路径为/tmp/test，将/tmp/test/oldfile更改为/tmp/test/newfile，以下命令错误的是（）。A、mv /tmp/test/oldfile newfileB、mv /tmp/test/oldfile /tmp/test/newfileC、mv oldfile /tmp/test/D、mv oldfile newfile
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在linux系统中，当前路径为/tmp/test，将/tmp/test/oldfile更改为/tmp/test/newfile，以下命令正确的是（）。A、mv /tmp/test/oldfile newfileB、mv /tmp/test/oldfile /tmp/test/newfileC、mv oldfile newfileD、mv oldfile /tmp/test/newfileE、mv oldfile /tmp/test/
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在linux系统中，用cp命令将/tmp/test中的文件到/tmp/test1中，不想拷贝目录本身，以下命令正确的是（）。A、cp -R /tmp/test /tmp/test1B、cp -r /tmp/test /tmp/test1C、cp -R /tmp/test/. /tmp/test1D、cp /tmp/test /tmp/test1
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A system administrator wants to run a script called myscript， but does not want to see the errors that might be generated by the script. How would this be accomplished？（）A、/usr/local/bin/myscript /dev/nullB、/usr/local/bin/myscript /dev/nullC、/usr/local/bin/myscript 2 /dev/nullD、/usr/local/bin/myscript 1 /dev/null
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在linux系统中，用cp命令将/tmp/test/file文件，复制到/tmp下，并保持原来的名字，以下命令中正确的是（）。A、cp -l /tmp/test/file /tmpB、cp -s /tmp/test/file /tmpC、cp -r /tmp/test/file /tmpD、cp /tmp/test/file /tmpE、cp /tmp/test/file /tmp/file
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A user reports that they cannot cd to /tmp/application. A system administrator entered the following command： Is -Id /tmp/application drw-r-r- 4 root system 512 Jan 15 14：09 application Which of the following is the most likely cause of the problem（）A、The /tmp/application should be globally writable.B、The /tmp/application directory should be executable.C、The /tmp/application directory should be owned by the user.D、The /tmp/application directory should have the sticky bit set
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An operator needs to run a script which will write standard output and standard error to different files. Which of the following commands will successfully perform this task?（）A、myscript.ksh 1/tmp/log/script.log 2/tmp/log/script.errB、myscript.ksh $1/tmp/log/script.log $2/tmp/log/script.errC、myscript.ksh 1/tmp/log/script.log 21 /tmp/log/script/errD、myscript.ksh 21 /tmp/log/script.log 2 /tmp/log/script.err
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A user reports that they cannot cd to /tmp/application. A system administrator entered the following command： （1）ls -ld /tmp/application （2）drw-r--r-- 4 root system 512 Jan 15 14：09 application What is the most likely cause of the problem？（）A、The /tmp/application should be globally writable.B、The /tmp/application directory should be executable.C、The /tmp/application directory should be owned by the user.D、The /tmp/application directory should have the sticky bit set.
考题
Which cron entry will run /usr/local/bin/myscript at 0500 every Saturday of the following？（）A、0 5 * * 6 /usr/local/bin/myscriptB、0 5 6 * * /usr/local/bin/myscriptC、6 * * 5 0 /usr/local/bin/myscriptD、5 0 Sat * * /usr/local/bin/myscript
考题
Which cron entry will run /usr/local/bin/myscript at 0500 every Saturday（）A、5 0 * * 6 /usr/local/bin/myscriptB、6 * * 5 0 /usr/local/bin/myscriptC、0 5 * * 6 /usr/local/bin/myscriptD、0 5 6 * * /usr/local/bin/myscript
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Which command will run myscript and redirect stdout and sterr to /tmp/myoutput？（）A、./myscript /tmp/myoutputB、./myscript 21 /tmp/myoutputC、./myscript /tmp/myoutput 21D、./myscript /tmp/myoutput 12
考题
单选题Files /tmp/file2 and /tmp/file3 are hard linked to /tmp/file1. What will the result be if a user makes changes to /tmp/file2 at the same time another user tries to delete /tmp/file1？（）A
All three files will contain the updates and will remain available.B
All three files will be deleted and no changes will be made to /tmp/file2.C
Only /tmp/file2 will contain the updates， but /tmp/file3 will remain available.D
Both /tmp/file2 and /tmp/file3 will contain the updates and will remain available.
考题
单选题在linux系统中，当前路径为/tmp/test，将/tmp/test/oldfile更改为/tmp/test/newfile，以下命令错误的是（）。A
mv /tmp/test/oldfile newfileB
mv /tmp/test/oldfile /tmp/test/newfileC
mv oldfile /tmp/test/D
mv oldfile newfile
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单选题在linux系统中，用cp命令将/tmp/test中的文件到/tmp/test1中，不想拷贝目录本身，以下命令正确的是（）。A
cp -R /tmp/test /tmp/test1B
cp -r /tmp/test /tmp/test1C
cp -R /tmp/test/. /tmp/test1D
cp /tmp/test /tmp/test1
考题
单选题Which cron entry will run /usr/local/bin/myscript at 0500 every Saturday（）A
5 0 * * 6 /usr/local/bin/myscriptB
6 * * 5 0 /usr/local/bin/myscriptC
0 5 * * 6 /usr/local/bin/myscriptD
0 5 6 * * /usr/local/bin/myscript
考题
单选题A system administrator wants to run a script called myscript， but does not want to see the errors that might be generated by the script. How would this be accomplished？（）A
/usr/local/bin/myscript /dev/nullB
/usr/local/bin/myscript /dev/nullC
/usr/local/bin/myscript 2 /dev/nullD
/usr/local/bin/myscript 1 /dev/null
考题
单选题在linux系统中，在/tmp下创建一个空文件file的命令是（）。A
mkdir /tmp/fileB
make /tmp/fileC
touch /tmp/fileD
mv /tmp/file
考题
单选题An operator needs to run a script which will write standard output and standard error to different files. Which of the following commands will successfully perform this task?（）A
myscript.ksh 1/tmp/log/script.log 2/tmp/log/script.errB
myscript.ksh $1/tmp/log/script.log $2/tmp/log/script.errC
myscript.ksh 1/tmp/log/script.log 21 /tmp/log/script/errD
myscript.ksh 21 /tmp/log/script.log 2 /tmp/log/script.err
考题
单选题A user reports that they cannot cd to /tmp/application. A system administrator entered the following command： Is -Id /tmp/application drw-r-r- 4 root system 512 Jan 15 14：09 application Which of the following is the most likely cause of the problem（）A
The /tmp/application should be globally writable.B
The /tmp/application directory should be executable.C
The /tmp/application directory should be owned by the user.D
The /tmp/application directory should have the sticky bit set
考题
单选题A user reports that they cannot cd to /tmp/application. A system administrator entered the following command： （1）ls -ld /tmp/application （2）drw-r--r-- 4 root system 512 Jan 15 14：09 application What is the most likely cause of the problem？（）A
The /tmp/application should be globally writable.B
The /tmp/application directory should be executable.C
The /tmp/application directory should be owned by the user.D
The /tmp/application directory should have the sticky bit set.
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