find two different in a file

ust · 08-15-2008, 01:33 AM

I want to find all line that have the word "test" & "error" .

I know "cat myfile |grep test" can show the line with the word test , if I also want to show the line with the word "error" , what can i do ? thx

ps. that means show the line that have the word "test" OR "error" , what can i do ? thx

matthewg42 · 08-15-2008, 01:52 AM

Do you mean:

Quote:

Only lines which contain both "error" and "test"

or

Quote:

Lines which contain either "error" or "test"

?

ust · 08-15-2008, 03:08 AM

Quote:

Originally Posted by matthewg42

Do you mean:

or

?

Lines which contain either "error" or "test"

thx

Vit77 · 08-15-2008, 03:17 AM

cat myfile | grep -e test -e error

pwc101 · 08-15-2008, 03:20 AM

Quote:

Originally Posted by Vit77

cat myfile | grep -e test -e error

There's no need to cat a file into grep, grep is quite capable of reading files all on its own:

Code:

grep -e test -e error myfile

Vit77 · 08-15-2008, 03:56 AM

Quote:

Originally Posted by pwc101

There's no need to cat a file into grep, grep is quite capable of reading files all on its own:

Code:

grep -e test -e error myfile

Oh, sure!

osamaensyviswinkel · 08-18-2008, 04:47 AM

You can use egrep for a shorter command syntax - see the output of the file below, and then egrep.

[11:45][root@francoisvn]/home/francoisvn # cat myfile
qwdqwidjqd
we
1312
235235235

123

test

1233twefvwd

error
12test
34error

[11:45][root@francoisvn]/home/francoisvn # egrep 'test|error' myfile
test
error
12test
34error