Finding a string within a file and outputting results

Question

I would like grab one line (1 term) at a time from file1.txt and search sFile.txt... outputting all the lines that have the found term in it. file1.txt (300 lines) sFile.txt (100k lines). I would like to use a command line (linux) fgrep, ack, find, etc. I have tried a fgrep command but I am hitting the character limit so nothing is being processed.

tried: fgrep -wi 'front1' test.log >> final.txt this worked but when adding file1.txt the process was not able to run

file1.txt structure (case insensitive)

front1
front2
FrOnT3

sFile.txt structure

106.4 - - [12/Aug/2020:10:46:57 -0400] "GET /skin/front1/sharp_bootstrap/default/css"
106.4 - - [12/Aug/2020:10:46:57 -0400] "GET /skin/front3/sharp_bootstrap/default/css"
106.4 - - [12/Aug/2020:10:46:57 -0400] "GET /skin/front2/sharp_bootstrap/default/css"
106.4 - - [12/Aug/2020:10:46:57 -0400] "GET /skin/front0/sharp_bootstrap/default/css"

final.txt three lines should have been found

106.4 - - [12/Aug/2020:10:46:57 -0400] "GET /skin/front1/sharp_bootstrap/default/css"
106.4 - - [12/Aug/2020:10:46:57 -0400] "GET /skin/front3/sharp_bootstrap/default/css"
106.4 - - [12/Aug/2020:10:46:57 -0400] "GET /skin/front2/sharp_bootstrap/default/css"

Is it supposed to be in ServerFault? https://serverfault.com/ — felipsmartins, Aug 31 '20 at 21:35
*when adding file1.txt the process was not able to run* And how did you add it? — Shawn, Aug 31 '20 at 21:44
What is the output/errors of `grep -f file1.txt sFile.txt` ? — thanasisp, Aug 31 '20 at 22:27
@thanasisp nothing is outputted ... but if I add 2-3 lines in file1.txt and process it against sFile.txt it outputs results with no problems. Full 300 lines seems to be too much... I read that grep has a 2048 character limit — acctman, Sep 01 '20 at 00:47
I realize the `fgrep --man` output is a bit much to take in all at once. You need an `-f srchListFile.txt` argument in an `fgrep` cmd. Good luck. — shellter, Sep 01 '20 at 01:32

score 0 · Answer 1 · answered Sep 01 '20 at 02:48

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Slightly modifying what @thanasisp said, are you not getting the desired output if you use the below?

grep -if file1.txt sFile.txt

answered Sep 01 '20 at 02:48

SSS

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score 0 · Accepted Answer · answered Sep 01 '20 at 15:04

0

I found the solution... Source for Solution

fgrep -v -F -f file1.txt sFile.txt

answered Sep 01 '20 at 15:04

acctman

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Finding a string within a file and outputting results

2 Answers2