cheat/cheatsheets/grep
2014-07-29 18:01:04 +02:00

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# Basic:
grep pattern file
# case nonsensitive research:
grep -i pattern file
# Recursively grep for string <pattern> in folder:
grep -R pattern folder
# Getting pattern from file (one by line):
grep -f pattern_file file
# Find lines NOT containing pattern
grep -v pattern file
# You can grep with regular expressions
grep "^00" file #Match lines starting with 00
grep -E "[0-9]{1,3}\.[0-9]{1,3}\.[0-9]{1,3}\.[0-9]{1,3}" file #Find IP add
# Find all files who contain {pattern} in the directory {directory}.
# This will show: "file:line my research"
grep -rnw 'directory' -e "pattern"
# Exclude grep from your grepped output of ps.
# Add [] to the first letter. Ex: sshd -> [s]shd
ps aux | grep '[h]ttpd'
# Colour in red {bash} and keep all other lines
ps aux | grep -E --color 'bash|$'