how can I find all lines containing two words?

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I need to check if two words are exist on any line in a text file. there are no limits for the characters of the words For example:

I want to find lines of a text that contain the two words cat and elephant together:

Cat is smaller than elephant
Elephant is larger than ca
Cats are cute!
Elephants are very strong
Cat and elephants live in different environment
cats are friendly

In the previous examples, how can I find the lines containing both words

Cat is smaller than elephant
Elephant is larger than cat
Cat and elephants live in different environment

I tried grep and awk with no hope, the problem is there are words have upper and lower case so how can I match for both words regardless of its letter status!?

thanks for any help

asked 8 mins ago

gormet

New contributor

Try with grep again, but use grep -i. This makes its matching disregard the case of the letters. Also, please show what you've tried so that other's make comment and give suggestions for improvement. For example, does your command distinguish that "catnip" is not the word "cat"?
â€“Â Kusalananda
8 secs ago

add a commentÂ |Â

up vote
0
down vote

favorite

I need to check if two words are exist on any line in a text file. there are no limits for the characters of the words For example:

I want to find lines of a text that contain the two words cat and elephant together:

Cat is smaller than elephant
Elephant is larger than ca
Cats are cute!
Elephants are very strong
Cat and elephants live in different environment
cats are friendly

In the previous examples, how can I find the lines containing both words

Cat is smaller than elephant
Elephant is larger than cat
Cat and elephants live in different environment

I tried grep and awk with no hope, the problem is there are words have upper and lower case so how can I match for both words regardless of its letter status!?

thanks for any help

asked 8 mins ago

gormet

New contributor

Try with grep again, but use grep -i. This makes its matching disregard the case of the letters. Also, please show what you've tried so that other's make comment and give suggestions for improvement. For example, does your command distinguish that "catnip" is not the word "cat"?
â€“Â Kusalananda
8 secs ago

add a commentÂ |Â

up vote
0
down vote

favorite

I need to check if two words are exist on any line in a text file. there are no limits for the characters of the words For example:

I want to find lines of a text that contain the two words cat and elephant together:

Cat is smaller than elephant
Elephant is larger than ca
Cats are cute!
Elephants are very strong
Cat and elephants live in different environment
cats are friendly

In the previous examples, how can I find the lines containing both words

Cat is smaller than elephant
Elephant is larger than cat
Cat and elephants live in different environment

I tried grep and awk with no hope, the problem is there are words have upper and lower case so how can I match for both words regardless of its letter status!?

thanks for any help

asked 8 mins ago

gormet

New contributor

I need to check if two words are exist on any line in a text file. there are no limits for the characters of the words For example:

I want to find lines of a text that contain the two words cat and elephant together:

Cat is smaller than elephant
Elephant is larger than ca
Cats are cute!
Elephants are very strong
Cat and elephants live in different environment
cats are friendly

In the previous examples, how can I find the lines containing both words

Cat is smaller than elephant
Elephant is larger than cat
Cat and elephants live in different environment

I tried grep and awk with no hope, the problem is there are words have upper and lower case so how can I match for both words regardless of its letter status!?

thanks for any help

bash

asked 8 mins ago

gormet

New contributor

asked 8 mins ago

gormet

New contributor

asked 8 mins ago

gormet

New contributor

asked 8 mins ago

gormet

asked 8 mins ago

gormet

New contributor

gormet is a new contributor to this site. Take care in asking for clarification, commenting, and answering.
Check out our Code of Conduct.

Try with grep again, but use grep -i. This makes its matching disregard the case of the letters. Also, please show what you've tried so that other's make comment and give suggestions for improvement. For example, does your command distinguish that "catnip" is not the word "cat"?
â€“Â Kusalananda
8 secs ago

add a commentÂ |Â

Try with grep again, but use grep -i. This makes its matching disregard the case of the letters. Also, please show what you've tried so that other's make comment and give suggestions for improvement. For example, does your command distinguish that "catnip" is not the word "cat"?
â€“Â Kusalananda
8 secs ago

Try with grep again, but use grep -i. This makes its matching disregard the case of the letters. Also, please show what you've tried so that other's make comment and give suggestions for improvement. For example, does your command distinguish that "catnip" is not the word "cat"?
â€“Â Kusalananda
8 secs ago

add a commentÂ |Â

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grep -i "cat" file | grep -i "elephant"

Cat is smaller than elephant
Elephant is larger than cat
Cat and elephants live in different environment

The flag in grep is to ignore case (upper/lower)

 -i, --ignore-case ignore case distinctions

answered 44 secs ago

Goro

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1 Answer
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active

oldest

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up vote
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down vote

grep -i "cat" file | grep -i "elephant"

Cat is smaller than elephant
Elephant is larger than cat
Cat and elephants live in different environment

The flag in grep is to ignore case (upper/lower)

 -i, --ignore-case ignore case distinctions

answered 44 secs ago

Goro

9,62364689

add a commentÂ |Â

up vote
0
down vote

grep -i "cat" file | grep -i "elephant"

Cat is smaller than elephant
Elephant is larger than cat
Cat and elephants live in different environment

The flag in grep is to ignore case (upper/lower)

 -i, --ignore-case ignore case distinctions

answered 44 secs ago

Goro

9,62364689

add a commentÂ |Â

up vote
0
down vote

grep -i "cat" file | grep -i "elephant"

Cat is smaller than elephant
Elephant is larger than cat
Cat and elephants live in different environment

The flag in grep is to ignore case (upper/lower)

 -i, --ignore-case ignore case distinctions

answered 44 secs ago

Goro

9,62364689

grep -i "cat" file | grep -i "elephant"

Cat is smaller than elephant
Elephant is larger than cat
Cat and elephants live in different environment

The flag in grep is to ignore case (upper/lower)

 -i, --ignore-case ignore case distinctions

answered 44 secs ago

Goro

9,62364689

answered 44 secs ago

Goro

9,62364689

answered 44 secs ago

Goro

9,62364689

answered 44 secs ago

Goro

9,62364689

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