bash print lines that match any of several words
# Basic syntax:
grep 'word1|word2|word3' /path/to/file
# This prints all lines that match word1, word2, OR, word3bash print lines that match any of several words
# Basic syntax:
grep 'word1|word2|word3' /path/to/file
# This prints all lines that match word1, word2, OR, word3grep get everything between two strings
echo "Here is a string" | grep -o -P '(?<=Here).*(?=string)'grep in multiple files
grep -E 'fatal|error|critical|failure|warning|' *.logCopyright © 2021 Codeinu
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