Removing lines based on multiple words 2

[ddrillich]

Good Day,

I would like to exclude lines that have the word SECTOR as well as the word DREFIELD.

The following throws lines that have SECTOR but it mistakenly can remove lines with SECTOR that don't have DREFIELD -

 grep -v  SECTOR  < source.txt

Regards,
Dan

 

[ChrisHirst]

I would like to exclude lines that have the word SECTOR as well as the word DREFIELD.

"as well as" is ambiguous, so to be more precise.

Do you mean:
remove lines that contain BOTH words;
or
lines that contain either word.

Chris.

Indifference will be the downfall of mankind, but who cares?
Time flies like an arrow, however, fruit flies like a banana.
Webmaster Forum

 

[ddrillich]

Hi Chris,

I'm speaking about - remove lines that contain BOTH words.

Sorry about that...

Regards,
Dan

 

[feherke]

Hi

Not really a usual task for [tt]grep[/tt], but while there are only two terms, is easy enough :

grep -v 'SECTOR.*DREFIELD\|DREFIELD.*SECTOR' /input/file

But I recommend a more suitable tool, for example [tt]awk[/tt] :

awk '!/SECTOR/||!/DREFIELD/' /input/file

Adding a third term to the later one will be much easier.


Feherke.
feherke.ga

 

[ChrisHirst]

Okay, depending on the order of the words;

As grep uses a regular expression, the pattern will be

'word1.*word2'

.* == Any number of any characters.



Chris.

Indifference will be the downfall of mankind, but who cares?
Time flies like an arrow, however, fruit flies like a banana.
Webmaster Forum

 

[ddrillich]

Many thanks Chris and Feherke.

Regards,
Dan