Linux grep Commands
V grep "example" my.txt search for "example" in "my.txt"
V grep "example" * txt search for "example" in all ".txt" files
V grep-i "example" my.txt search for "example" while ignoring cases
V grep-c "example" my.txt count # of lines that contain "example"
V grep-n "example" my.txt show line numbers along with matched lines v grep-r "example" '. search for "example" in all files recursively grep-v "example" my.txt display lines that do not contain "example"
V grep-w "example" search for lines containing "example" as a full word
V grep -e "key1" -e "key?" my.txt show lines containing either pattern
V grep-v-e "key1" -e "key2" my.txt show lines containing neither pattern
V grep "key1"key2" my.txt display lines contain both "key1" and "key?"
V grep -E "errorlwarning" app.log use extended regex for matching
V grep -E "^[a-zA-Z]" my.tt another extended regex example v grep-m3 "keyword" my.txt limit grep output to a fixed number of lines
V grep-A2-B2 "example" my.txt show 2 lines before and after match v grep -C3 "error" server.log show 3 lines before and after match grep- "spoofing" my.txt show lines that exactly match a string
V grep- "example" * display file names that match the pattern
V grep "^hello" my.txt show all lines that start with "hello"
V grep "done$" my.txt show all lines that end with "done" grep-o "begin."end" my.txt show only the matched string v grep -color "example" my.txt display matches with color v grep "[0-9]" my.txt show all lines that contain any digits grep-a "string" my.bin search for a string in a binary file
