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29 lines
827 B
Text
29 lines
827 B
Text
# Search a file for a pattern
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grep pattern file
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# Case insensitive search (with line numbers)
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grep -in pattern file
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# Recursively grep for string <pattern> in folder:
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grep -R pattern folder
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# Read search patterns from a file (one per line)
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grep -f pattern_file file
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# Find lines NOT containing pattern
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grep -v pattern file
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# You can grep with regular expressions
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grep "^00" file #Match lines starting with 00
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grep -E "[0-9]{1,3}\.[0-9]{1,3}\.[0-9]{1,3}\.[0-9]{1,3}" file #Find IP add
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# Find all files which match {pattern} in {directory}
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# This will show: "file:line my research"
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grep -rnw 'directory' -e "pattern"
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# Exclude grep from your grepped output of ps.
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# Add [] to the first letter. Ex: sshd -> [s]shd
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ps aux | grep '[h]ttpd'
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# Colour in red {bash} and keep all other lines
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ps aux | grep -E --color 'bash|$'
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