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Exam EX200 topic 1 question 6 discussion

Actual exam question from RedHat's EX200
Question #: 6
Topic #: 1
[All EX200 Questions]

Find the rows that contain abcde from file /etc/testfile, and write it to the file/tmp/testfile, and the sequence is requested as the same as /etc/testfile.

Show Suggested Answer Hide Answer
Suggested Answer: See explanation below.
# cat /etc/testfile | while read line;
echo $line | grep abcde | tee -a /tmp/testfile

OR -
grep `abcde' /etc/testfile > /tmp/testfile


Chosen Answer:
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Highly Voted 2 years, 9 months ago
grep abcde /etc/testfile > /tmp/testfile
upvoted 20 times
Highly Voted 2 years, 8 months ago
cat /etc/testfile | grep "abcde" > /tmp/testfile
upvoted 10 times
Most Recent 1 month ago
#grep "abcde" /etc/testfile > /tmp/testfile
upvoted 1 times
3 months, 4 weeks ago
#touch /tmp/testfile - if file doesn't exists #grep abcde /etc/testfile > /tmp/testfile #cat /tmp/testfile - to verfy
upvoted 1 times
6 months, 2 weeks ago
There is no specified if the content of destination file can be replaced. So i suppose that it can.. in that case these commands are correct: cat /etc/testfile | grep abcde > /tmp/testfile OR grep abcde /etc/testfile > /tmp/testfile In case that content of destination file should not be replaced, following command will work: cat /etc/testfile | while read line; do echo $line | grep abcde | tee -a /tmp/testfile; done There is missing ";" in "correct answer" here, so the command from there will work if you will copy paste it but if you need to write it on your own, you must add the ";" or use bash script!
upvoted 2 times
7 months, 4 weeks ago
grep -w "abcde" /etc/testfile >> /tmp/testfile
upvoted 1 times
8 months ago
grep ^abcde$ /etc/testfile > /tmp/testfile
upvoted 1 times
1 year, 8 months ago
grep abcde /etc/testfile | tee /tmp/testfile
upvoted 1 times
1 year, 9 months ago
cat /etc/testfile | grep abcde > /tmp/testfile OR grep abcde /etc/testfile > /tmp/testfile
upvoted 4 times
2 years ago
cat /etc/tesfile | grep abcde > /tmp/testfile
upvoted 3 times
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