Help Using Grep Command


 
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# 1  
Old 11-13-2018
Help Using Grep Command

Hello Everyone,

As a fairly new user, I am attempting to better my Linux skills. Operating in Ubuntu has thus far been a fairly easy process, but I am having some trouble learning how to use the grep command. I have a series of .txt files and need identify which of the .txt files contain the status code “301" using the grep command. If anyone has suggestions regarding how I could go about this, they would be greatly appreciated!
# 2  
Old 11-13-2018
Have you tried anything yourself ?

Regards
Peasant.
# 3  
Old 11-13-2018
Peasant,

Thank you for your reply. I was researching this issue for almost two hours last night, and I did not come up with anything that appeared to be useful. I understand how the grep command works- specifically to find patterns, etc- but I don't exactly understand what I am trying to find. This is a challenge provided to me, but with no experience with grep, it's proven to be difficult.

Best,
Jacrispy
# 4  
Old 11-13-2018
grep 301 *.txt
1.txt:301
2.txt:301

this would be the simplest solution. it lists in which file the text 301 is present.
# 5  
Old 11-13-2018
Hi Jacrispy,

It may be that grep is the correct tool for your task, however until you furnish information about the task - we can't be much more specific than eleenrose.

An analogy is a microscope is good for looking at the miniscule and close, but to look for Stars you probably need a telescope.

If we don't know what the problem is it isn't easy to give the proper help and advice.

Regards

Gull04
This User Gave Thanks to gull04 For This Post:
# 6  
Old 11-13-2018
Requesting help, continued

Hello All,
Thank you for your feedback thus-far. I have attached two images with sample grep outputs that I have been able to run. The output found in the first link raises a question in my mind that I am hoping someone may be able to answer. Specifically line number 297 that is displayed: I am attempting to find 301 & 302 status codes within each of the text files I have downloaded (I understand that 301 is a permanent redirect and 302 is temporary) but I am not sure what I am really looking at in this output. Compared to the second image where the 302 is highlighted, the 301 in the first image is not in the same position (by this I mean the difference between: ' 302 0 ' in the first link, and ' 200 301 ' in the second.) Could anyone help me understand if the position of 301 or 302 makes a difference regarding if it is a status output or not? Apologies in advance for any confusion this response may cause, I am trying to relay as much information as possible as clearly as I can!

Thank you all,

Jacrispy
Help Using Grep Command-example302greppng
Help Using Grep Command-examplegrepoutputpng
# 7  
Old 11-13-2018
Hi,

I'm going to suggest that the following HTTP 301 and HTTP302 code pages are well worth a read, should answer your question.

Regards

Gull04
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