Questions tagged [awk]

Question 1

I have those lines mycommand --option1 mycommand --option2 mycommand --option3 mycommand --option4 mycommand -h mycommand -i mycommand -z mycommand -1 I want to remove all until - or -- appear so I ...

Question 2

I'm working on wrangling some data into a matrix format for a PCA analysis. I have attempted a more straightforward version with R, but pivot_wider() fails due to the massive size of this dataset (~4....

Question 3

I have a folder with many subfolders full of various Quarto(reg) files & in those files there are links that are located in varying positions in the file lines. UPDATE ON 3 November 2025 in ...

Question 4

I have a few RHEL 8/9 boxes with a cron job that updates them automatically every week. The reboots are done manually from time to time and I would like to write a script to simplify the removal of ...

Question 5

I want to print the part before a matching pattern with awk. The original problem is, I want to get the service name from kubernetes pod names. We have pods with names like some-name-and-foo-[[:alnum:]...

Question 6

Consider this awk invocation: awk 'BEGIN {print 1}' There are no input files, so stdin is used for input. However, the program only contains a BEGIN pattern, so there is no need to read it. Does ...

Question 7

I want to print a colon after every 2 characters of alphanumeric Value and I found something like below. But I am not sure how to remove initial 2 characters from the output and what is the meaning of ...

Question 8

How to remove comments and newline symbols without using two pipes. I have bookmarks.txt file with comments. https://cookies.com # recipes cookbook https://magicwands.com # shopping I can copy link ...

Question 9

I'm working with several files which come in bundle of four, across groups the bundels have the same number of columns; see below for an example showing the first four rows with header: File1 has ...

Question 10

I have a dir containing logstash config files these files have filter blocks, and sometimes nested child blocks need to match whole filter block filter { any text till final matching closing brace for ...

Question 11

I'd like to retrieve data from here https://www.sbs.com.au/ondemand/tv-series/la-unidad/season-1. I wget the page to file. The data I seek is in the form of (samples): https://www.sbs.com.au/ondemand/...

Question 12

I have a file (FILE1) with some repeated sections as below (example): LINE 1 ABCD LINE 2 EFGA LINE 3 HCJK REMOVE LINE11 REMOVE LINE12 REMOVE LINE13 LINE 4 ABCDH LINE 5 EFGAG LINE 6 HCJKD REMOVE ...

Question 13

Please see my linux bash script below. I can't achieve my target output with my current code. It keeps reading the whole column 4. input_file.txt: REV NUM |SVN PATH | FILE NAME |DOWNLOAD ...

Question 14

I'm new to Bash and I've been self-taught. I think I'm learning well, but I do have staggering gaps in my base knowledge. So sorry if this is woefully simple bbuuuttt... Essentially, I need to sift ...

Question 15

In Linux in a directory there are files, ls -1 shows me this output : file1.1-rvr file1.2-rvr file1.3 file1.4-rvr file1.5 file1.6-rvr file2.1 file2.2 file3.1 file3.10 file3.2-rvr file3.3-rvr file3.4 ...

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Questions tagged [awk]

Linux: how to remove starting from chars?

reformat data for PCA with AWK

find awk grep - search and replace & passing modified contents to awk to overwrite the existing file

Cleaning-up previous kernel RPMs after reboot

awk - print the leading part of a matching pattern with back references

Does POSIX guarantee that awk programs with only a BEGIN action won't read stdin?

Insert a character after every 2 character but discard first 2 characters

Remove new lines and everything after comment symbol with awk or sed

Compare files and combine rows with matching values based on last column

sed inplace in selective block

How to strip data from html using awk?

Perl or sed script to remove a specific content of a file from another bigger file

Awk prints only first word on the field column

How to extract a sub-heading as string which is above a search for word

Rename a set of files according to a specific scheme, with rename back option

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