Embedded Files
This page provides an incomplete crib sheet for use of the grep command. For full details see the man page. All examples are based on the files shown at the top of this page.
cat filename
pattern1pattern2pattern3,pattern4pattern4,pattern4pattern5,pattern5,pattern4pattern6.pattern5pattern7pattern8pattern9pattern10Pattern1Pattern2Pattern3,pattern4Pattern4,pattern4Pattern5,pattern5,pattern4Pattern6,pattern5Pattern7Pattern8Pattern9Pattern10cat filename2
pattern1pattern2grep 'pattern1' filename
pattern1pattern10
Match words not substrings...
Match words not substrings...
grep -w 'pattern1' filename
grep --word-regexp 'pattern1' filename
pattern1
Ignore case...
Ignore case...
grep -i 'pattern1' filename
grep --ignore-case 'pattern1' filename
pattern1pattern10Pattern1Pattern10
OR
OR
grep 'pattern1\|pattern2' filename
grep -E 'pattern1|pattern2' filename
grep --extended-regexp 'pattern1|pattern2' filename
grep -F -f filename2 filename
grep --fixed-strings --file=filename2 filename
pattern1pattern2pattern10
AND
AND
grep -E 'Pattern.*pattern4' filename
grep --extended-regexp 'Pattern.*pattern4' filename
Pattern3,pattern4Pattern4,pattern4Pattern5,pattern5,pattern4
NOT
NOT
grep -v 'pattern' filename
grep --invert-match 'pattern' filename
Pattern1Pattern2Pattern7Pattern8Pattern9Pattern10
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