All Questions
155
questions
-1
votes
3
answers
90
views
Delete 2-line paragraphs, keep 3-line paragraphs, maintain newline between all
On a Linux machine with GNU tools I have an ascii file that consists of only 2-line and 3-line paragraphs, each paragraph separated by a newline. All 2-line paragraphs are to be deleted so that all 3-...
16
votes
5
answers
1k
views
How can UserA programmatically replace a text string within a file they own that's located in /etc?
A non-root linux user owns a text file that's located in /etc, where the non-root linux user does not have permission to create files. The non-root linux user can edit the file manually via vi without ...
- 163
1
vote
3
answers
73
views
Bash: sum a number present in N lines before a given pattern
I have a kdenlive project file (which is basically a xml file) with a lot of text clips inside. I need to bulk edit the x coordinate of a certain text that appears multiple times. This is an example:
...
- 27
6
votes
3
answers
644
views
awk: sort by first column then second; output unique 1st column once but all 2nd column
I have a two-column file that you can create as follows
cat > twocol << EOF
007 03
001 03
003 01
137 12
001 11
002 01
002 02
002 03
001 02
002 04
137 94
010 21
001 01
EOF
The resultant file, ...
- 336
2
votes
3
answers
821
views
ARGV[] not accepting the argument
I have a shell script that I am trying to pass a date argument to ARGV[1] but the script is giving a blank output
Here is the command:
#!/bin/bash
dt=$(date -d "yesterday" '+%m%d%Y')
cat /...
- 73
-2
votes
3
answers
120
views
bash + how to verify folders under specific path are ended with number/s
I want to check the folder/s under /var/kafka that all them are ended with number otherwhile I will exit with error
ls -ltr /var/kafka
drwxr-xr-x 399 kafka kafka 28672 Nov 9 13:10 data6
drwxr-xr-x ...
- 13.4k
-1
votes
3
answers
152
views
Replace new lines at end for those lines whose 2nd field in colon separated file span over to multiple line
I have got multiple files with different set of contents but the pattern is same across mulitple lines in different files.
sample input file : cat -n test.txt
1 adjfkhjdhfkjd: ...
0
votes
1
answer
535
views
Check if two IP addresses are in a range
Using bash or perl on a minimal installed Linux, I am trying to validate two IP addresses if there are in a range.
I came across a bash script that works well, but the fact that it prints all the IP ...
- 1,607
2
votes
0
answers
100
views
Processing large blocklists with GNU Parallel
This is an ongoing project that has undergone a major update to speed up list processing. Here is the homepage for anyone interested!
It processes lists defined in lists.json by transforming the list ...
- 213
2
votes
1
answer
396
views
How can I pass variables from a Perl script to a Bash script?
I got the duty to make a fix to an ancient Perl script our company uses, I haven't even looked at Perl in about 20 years. So I want to pick up a couple of the variables, and dump them to the ...
- 21
1
vote
6
answers
935
views
Find and replace a multi line text file in another multi line text file
I fought with it for so long but I am now completely out of ideas. Maybe someone here will be able to help me. Here is what I want to achieve:
file_1.txt:
# Some comment
some_variable="test"
...
- 121
1
vote
1
answer
47
views
"Total In-/Out- coming connection awareness" - script?
once I had found a bash (or Perl maybe; it's so long ago, that I wasn't knowledgeable about bash enough to tell one set of hieroglyphs from another set so to speak) script that filtered the open files ...
- 435
0
votes
0
answers
514
views
base64 decode as save as multiple files
I have a file(har file saved from web developer" that contains the base64 encoded value of multiple video*.ts files. I am interested to decode the base64 part and save as multiple ts files if the ...
- 101
3
votes
2
answers
282
views
Find regex occurrances on block device (line length buffer issue)
I'm trying to find all numbers on two block devices that start with a # character, are between 1635700000 and 1653699999, and end either with a null character (\0) or a linux newline (\0xA).
I came up ...
- 1,218
0
votes
4
answers
371
views
extract and compare block of text
I have a data gethered in one file organised in blocks
---- BLOCK ONE ----
some data
another data
more data
more data
-------------------
---- BLOCK two ----
some data
another data
-------------------...
- 3