Flush slash "\" in grep

Question

I have a file with a line:

"H:\Check\WP_20140511_029.mp4"

along with other lines. I want to remove such lines indicating the directory in H:\Check. I tried

grep -v ".*H:\\Check.*" testout.txt > testout2.txt

But he did not delete these lines. What is wrong with my regular expression .*H:\\Check.*. regex101 shows that my regex matches the string correctly.

Answer 1

You can use:

grep -v 'H:\\Check' testout.txt > testout2.txt

It is important to use single quotes to avoid over-escaping the backslash.

Using the equivalent double-quoted command will be as follows:

grep -v "H:\\\Check" testout.txt > testout2.txt

---

EDIT:

\\ - , . echo :

echo "H:\\Check"
H:\Check

echo 'H:\\Check'
H:\\Check

Answer 2

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