2017-02-09 16:11:33 +01:00
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* `echo "hello world"`
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* `pwd`
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* `ls`
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* `cat access.log`
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* `tail -n 5 access.log`
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* `grep "GET" access.log`
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* `grep -c -P '\t' file-with-tabs.txt`
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* `grep -l 500 *`
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* `ls | grep 'access.log*'`
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* `find . -type f -name "access.log*" -exec grep -hP '500' {} \;`
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* `find . -type f -name "access.log*" -exec grep -oP '\d{1,3}\.\d{1,3}\.\d{1,3}\.\d{1,3}' {} \;`
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* `???`
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* `???`
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* `cat access.log | sort`
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* `???`
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* `???`
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* `???`
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* `rm -- -*rm`
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* `find . -type f -name "*.doc" -exec rm {} \;`
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* `???`
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* `find . -type f -name "*.txt" -exec sed -i 's/challenges are difficult//g' {} \;`
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* `???`
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* `find . -type f -exec basename {} \;`
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