this post was submitted on 24 May 2024
390 points (98.0% liked)

Programmer Humor

32490 readers
544 users here now

Post funny things about programming here! (Or just rant about your favourite programming language.)

Rules:

founded 5 years ago
MODERATORS
 
you are viewing a single comment's thread
view the rest of the comments
[โ€“] [email protected] 5 points 5 months ago (7 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 5 months 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 5 months ago (1 children)

You can just do

grep Error5 log.txt
[โ€“] [email protected] 12 points 5 months 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 5 months ago

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

[โ€“] [email protected] 3 points 5 months 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] 2 points 5 months ago

for me as well.

[โ€“] [email protected] 1 points 5 months ago

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

load more comments (4 replies)