AND OR NOT operators for grep

grep OR

• use '\|'

  grep 'pattern1\|pattern2' file

• use -E

  grep -E 'pattern1|pattern2' file

• use -e

  grep -e pattern1 -e pattern2 file

grep AND

• use pattern1.*pattern2

  grep -E 'pattern1.*pattern2|pattern2.*pattern1' file

• use multiple (piped) grep commands

  grep pattern1 file | grep pattern2

grep NOT (invert) option

• use -v option

  grep -v pattern file

see also

• 7 Linux Grep OR, Grep AND, Grep NOT Operator Examples