this post was submitted on 24 May 2024
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Programmer Humor

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[โ€“] [email protected] 5 points 1 month ago (1 children)

Please excuse my ignorance, but what is grep, what are the do's and dont's of logging and why are people here talking about having an entire team maintain some pipeline just to handle logs?

[โ€“] [email protected] 9 points 1 month ago (2 children)

It's a command line tool which filters for all lines containing the query. So something like

cat log.txt | grep Error5

Would output only lines containing Error5

[โ€“] [email protected] 9 points 1 month ago (1 children)

You can just do

grep Error5 log.txt
[โ€“] [email protected] 12 points 1 month ago (3 children)

In the back of my mind I know this is there, but the cat | grep pattern is just muscle memory at this point

[โ€“] [email protected] 3 points 1 month ago

I've been 'told off' so many times by the internet for my cat and grep combos that I still do it, then I remove the cat, it still works, and I feel better. shrug

[โ€“] [email protected] 3 points 1 month ago

Just remember that if you aren't actually concatenating files, cat is always unnecessary.

[โ€“] [email protected] 2 points 1 month ago

for me as well.

[โ€“] [email protected] 1 points 1 month ago

or if its a complex error cat log.txt|grep keyword1|grep keyword 2 and so on.