awk case insensitive and boolean operator -

i grep lines contains both patterns in order , i'm using

awk '/pattern1/ && /pattern2/' file.txt

but if want case insensitive search, adding /i works if add pattern2.

awk '/pattern1/ && /pattern2/i' file.txt ...works  awk '/pattern1/i && /pattern2/i' file.txt ...don't, outputs whole file

anyone know how solve this?

try:

awk '{s=tolower($0)} s~/lowercase_pattern1/ && s~/lowercase_pattern2/' file

there possibility of ignorecase option in gnu awk..

you of time this:

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

Two