All Questions
1,090
questions
0
votes
1
answer
120
views
Find the highest number after specific string from mutiple files
Each file has similar content:
number 1:
asdfa11sdfsadf
number 2:
asdfa12sdfsadf
number 1:
asdfa1sdfsadf
number 3:
asdfa33sdfsadf
return
3 or number 3: are equally good.
Have tried:
max="$( awk ...
- 161
2
votes
4
answers
2k
views
Grep excluding line that ends in 0, but not 10, 100 etc
I have a file that has this pattern in Linux and Unix environments.
# file1
text1 98432230
text2 123412
text3 10
line4 0
line5 0
line6 40000
... ...
line10 ...
- 23
3
votes
2
answers
119
views
Extract lines multiple times from a text file according to a list with repeated patterns
I have a file where each line starts with a unique identifier, for example:
$ cat source.txt
aaa text
bbb text
ccc text
ddd text
eee text
I am trying to use fgrep with the option -f to save lines ...
- 33
2
votes
2
answers
1k
views
How to grep on a single column using a list of words
I would like to extract some rows from a file based on their match on a single column with a list of words.
In awk, I could use something like this:
awk '$5 == "someword" {print}' file.txt
...
- 277
0
votes
4
answers
104
views
Grep line containing a word OR has length in a specific range?
1598427@931
PDD 220624P00051000 ohlc=0,0,0,0 vol=0 oi=424 nbbo=69@2316/113@532 nbbo2=69@145/113@95
PDD 220617C00051000 ohlc=0,0,0,0 vol=0 oi=434 nbbo=530@1921/710@1496 nbbo2=530@31/710@115
PDD ...
- 103
5
votes
5
answers
8k
views
Finding the line number of first occurrence of a text in bash script
I need to find out what is the line number of first occurrence of a given search string that should be in the start of a line in a text file and store it in a variable in my bash script. For example I ...
- 968
0
votes
6
answers
530
views
awk, sed, or grep command to output boolean file for each word in file1 to check if it's existent or not in file2
I have two files, if the word in file 1 is not existent in file 2, I want to generate the word false in the corresponding line in a new file say file 3. Otherwise, I want to output true in the ...
- 271
-3
votes
1
answer
69
views
Grep the count of an outlier for location
I am trying to find the location of an outlier based on the count of the string. For instance, if I have a list of numbers between a range of 1-100 and one of the numbers is 200, if want the grep to ...
1
vote
4
answers
923
views
How can I get the lsblk-devices that are NOT in use
root@pve-virt-01:~# lsblk
NAME MAJ:MIN RM SIZE RO TYPE MOUNTPOINT
sda 8:0 0 250G 0 disk
├─sda1 8:1 0 1007K 0 part
├─sda2 8:2 ...
- 1,341
2
votes
1
answer
439
views
How to find keywords in multiple files which often appear together?
I want to find keywords, which often occur in relation to each other.
Example
A directory contains markdown files, each with some keywords on the last line:
$ tail -n 1 file1.md
#doctor #donkey #...
0
votes
1
answer
74
views
Timestamp on certain terminal output
I have a C++ file that outputs some terminal commands. I have the bash script to add a timestamp (ts) to each line but I wanted to know if it is possible to only add a timestamp to specific terminal ...
- 9
2
votes
2
answers
230
views
Extract identifiers and corresponding brackets among overlapped brackets
I have some files contained identifiers as below:
B#205918
A#273075
E#554065
Eg. sample of file1:
((((A#273075,A#273116),((A#224325,A#192952),A#243232)),(((E#7955,E#7165),E#6239),E#4530)),(((((E#3075,...
- 193
0
votes
1
answer
775
views
Return content between corresponding brackets
I have a file with all type of brackets {}[]()- nested, open and close appropriately. I would like to return the content within the matching square brackets after the string (text:). The content of ...
- 13
0
votes
3
answers
111
views
How to add column based in the second line match using SED or another command?
I have the following lines result from zcat command
1 - URL Template: https://www.test.com
2 - Response: <200 OK,{Server=[nginx], Date=[Wed, 11 May 2022 01:05:06 GMT], Content-Type=[text/html; ...
1
vote
2
answers
267
views
Extract field and number of occurrences per line
I have this file:
John Green', 'Age: 32', 'State: New York', 'Total cars: 2', 'Manufacter: General Motor', 'Model: Pontiac', 'Year: 2000', 'Manufacter: Ford Motor', 'Model: Endeavour', 'Year: 2010
...
- 1,272