date "+%:H%:M%：S" >time.txt
head -n 18 /etc/passwd |tail -n 3
find ./bin/*[[:upper:]]*|tee bin_westos_fine.txt|wc -l
find /etc/ -name passwd >
find /etc/ -name passwd 1>/tmp/westos.out 2>/tmp/westos.err
find /etc/ -name passwd 2>&1 |tee /tmp/passwd
作业 2
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转载自blog.csdn.net/qq_43287266/article/details/82856648
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