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BASH is the GNU Bourne Again SHell, the successor to the classic Unix Bourne sh (shell). It's the default shell for various GNU systems.

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Note: The below is similar to this question (i.e. same motivation & general idea), but tries to be more careful: My version should never touch the repository state (to preserve staged files etc), ...
Lukas Lang's user avatar
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Can you please comment on the script below? It backs up my local password database to a remote repository if a change is detected. It works as intended. I'd like some comments in terms of syntax, ...
Sandrew Cheru's user avatar
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I have written a short bash (or POSIX-compliant) script to clean up the Traefik access log file and limit it to a maximum of 50 MB. I would like to know what you think of it. Any suggestions are ...
Tobias Grothe's user avatar
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6 votes
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I made this executable because I used to play on a MUD, which was essentially a server to which you connect to through telnet to play in a multiplayer world. What annoyed me was how difficult it was ...
Chip01's user avatar
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What I'm asking here is whether do you think the facts there is no type enforcing; there is no indentation enforcing consoles do not syntax highlight consoles do not emphasize multi-line input a-la ...
Scrooge McDuck's user avatar
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In the below script I am using some arrays, and other Bash stuff, but I have made a minimal working example for you, where you cannot see those things. Anyway, I am interested in a review of the ...
Vlastimil Burián's user avatar
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8 votes
2 answers
481 views

We’re enforcing Azure Entra authentication across all Linux VMs, so we’ll disable all local accounts via a custom script. The script will also create a single “break-glass” user with a randomly ...
Dev's user avatar
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8 votes
5 answers
454 views

I'm looking for a (possibly cryptographic strong) hash function in Bash with the following properties: The input is only a string with 4 lower-case characters: aaaa to zzzz The output should be a ...
Tobias Grothe's user avatar
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8 votes
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On Arch Linux, there are 2 packages that provide the Rust toolchain: rust itself and rustup. When users try to install a package ...
404 Name Not Found's user avatar
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3 votes
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If you have files with Cyrillic filenames (e.g. день) and pack them as a ZIP archive on Windows, and then unpack on Mac using the standard archive utility, the ...
jsx97's user avatar
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7 votes
3 answers
325 views

The code works, but I could use help testing it more comprehensively and double-checking that everything I'm doing makes sense, and that all the options can coexist with each other. I'm running into ...
Sinjai's user avatar
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5 votes
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156 views

I’ve been working on a bash script to clean up old Docker images while keeping the latest tag for each repository and skipping images currently in use. I’m sharing the script below and would ...
Ilgar's user avatar
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This is a script to start a screen lock in Ubuntu, with user customizable background image(s). The script will eventually be run on sleep by systemd, so by root. This made it complicated to let the ...
Gauthier's user avatar
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813 views

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Beauford A. Stenberg's user avatar
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1 answer
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I'm trying to automate my Arch Linux installation using a bash script. The script would allow me to choose between installing Arch on a single SSD or using a combination of SSD (for root and home) and ...
DarKnightz's user avatar
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3 votes
4 answers
178 views

The script runs fine, and it seems to be working correctly. I'm looking for some criticism of the structure of the code, errors, bad practices, beginner's pitfalls, and bad code in general. I'm ...
Kizouyummi's user avatar
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1 answer
724 views

I've written a Bash function that can ask a simple yes/no question. The "yes/no" prompt is translated to the user's language (the question must be localised by the caller). Input is ...
Toby Speight's user avatar
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1 vote
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Marvelous Bash does not support built-in sufficient namespace features for functions or variables to specific file/module you would find in PHP or JavaScript. Conflicts in global scopes, which are ...
Serious Angel's user avatar
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I would like to ask for a review of the following Bash script which cleans up and datestamps file names, with an optional feature to rename the file. The main use case is renaming files downloaded ...
Thure Dührsen's user avatar
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2 votes
2 answers
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The path is provided as an argument by a Makefile within an install target. The script verifies if the specified path is already included in the system's ...
Madagascar's user avatar
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Objective: The script should pass each file present in the data directory to the read_file executable, and print its result and ...
Madagascar's user avatar
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2 votes
1 answer
107 views

I wrote this two-player tic-tac-toe program in bash. To make a move, you enter a number between 1 and 9 which corresponds to the square: ...
sbottingota's user avatar
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6 votes
1 answer
236 views

I wrote this two player tic-tac-toe program in bash. To make a move you enter a number between 0 and 8 which corresponds to the square: 0|1|2 3|4|5 6|7|8 This is ...
sbottingota's user avatar
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5 votes
2 answers
159 views

For a script, I came up with a shell function that might be generally useful. Before I add it to the code base, I’d like to hear someone’s opinion on this. I don’t write shell scripts often and had to ...
Bolpat's user avatar
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This is pretty horrible code, but it works. I don't code in bash 😭, usually code in Python. This is a learning exercise for me, so that's why I'm using bash + that's why I don't use libraries. I ...
M3RS's user avatar
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1 answer
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My deployment and configuration process entails multiple processes trying to invoke dpkg on my VM at the same time. While dpkg has a locking mechanism, it causes anyone not holding the lock who is ...
billp's user avatar
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1 vote
0 answers
74 views

Suppose that I want to subdivide a bash script into small idempotent functions, and I also want that those functions can depend on each other. For example, assume ...
Andrey Tyukin's user avatar
  • 251
3 votes
1 answer
446 views

I'm a relative bash novice but have found it along with jq a great way to manipulate json scraped from various sources. I couldn't find any ready-made scripts to convert arbitrarily deep json to bash ...
joeblog's user avatar
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Part 1 Today's task involves extrapolating the next value in sequences, given in this format: 0 3 6 9 12 15 1 3 6 10 15 21 10 13 16 21 30 45 The task is to ...
janos's user avatar
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3 votes
2 answers
67 views

Here's a script I wrote to automate testing for multiple sample files across two solutions, aiming to streamline the process. The script, provided below, compares expected results with the output of ...
Madagascar's user avatar
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1 vote
0 answers
41 views

Part 1 In today's task, a network of paths is defined like this: LLR AAA = (BBB, BBB) BBB = (AAA, ZZZ) ZZZ = (ZZZ, ZZZ) The first line ...
janos's user avatar
  • 113k
2 votes
0 answers
94 views

Part 1 Today's task is to rank hands in a Camel Cards game and compute the total score. In Camel Cards, you get a list of hands, and your goal is to order them based on the strength of each hand. A ...
janos's user avatar
  • 113k
2 votes
0 answers
55 views

Part 1 To paraphrase the puzzle, given the times and record distances of boat races like this: Time: 7 15 30 Distance: 9 40 200 That is, the first ...
janos's user avatar
  • 113k
3 votes
2 answers
83 views

I have several Spring Boot and Angular applications/microservices that form together a whole application. As it is tedious to start them via the terminal, I've written the following script to perform ...
jmizv's user avatar
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5 votes
2 answers
1k views

Yesterday I thought was the last day of Advent Of Code 2023 that I do in Bash. I was wrong. I'm not even sure anymore that today will be the one. We'll just have to see tomorrow! Part 1 To paraphrase ...
janos's user avatar
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1 vote
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128 views

Yes I'll keep doing this until I cannot be bothered to do it in Bash ;-) (Well today is probably the last one ;-)) Part 1 To paraphrase the puzzle, given some input ("engine schematic") like ...
janos's user avatar
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6 votes
2 answers
2k views

To paraphrase the puzzle, Santa takes a walk with an Elf, and they play a game involving a bag of colorful cubes. In each game, there is an unknown number of each colored cubes in the bag, and the Elf ...
janos's user avatar
  • 113k
5 votes
1 answer
237 views

It's that time of the year again! Although there's no more Winter Bash, we can still have all the Bash we want in winter ;-) Part 1 To paraphrase the description: For each line in the input: Find ...
janos's user avatar
  • 113k
-1 votes
1 answer
69 views

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xwj's user avatar
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3 votes
1 answer
169 views

Parts C++ Mock Library: Part 1 C++ Mock Library: Part 2 C++ Mock Library: Part 3 C++ Mock Library: Part 4 C++ Mock Library: Part 5 C++ Mock Library: Part 6 Removing redundant MOCK_SYS usage After ...
Loki Astari's user avatar
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3 votes
1 answer
127 views

VSCode's portable mode doesn't support auto-updates, unlike its normal installer-based versions. I happen to use MSYS2's UCRT64 environment which makes the Linux tools I like play nice with the ...
404 Name Not Found's user avatar
  • 653
6 votes
1 answer
114 views

The following function searches for disks whose partitions all have an attribute that match a filter when listed with lsblk. Comments are in TomDoc format. ...
mikeLundquist's user avatar
  • 429
4 votes
1 answer
105 views

The following function filters and formats /etc/fstab for future use. Comments are in TomDoc format. ...
mikeLundquist's user avatar
  • 429
5 votes
1 answer
168 views

Overview I have created a bash script (triggered via GitHub Actions) that does the following: Parse a list of YouTube channel IDs and nicknames. Fetch their metadata via YouTube's Channel API. Build ...
Jake Lee's user avatar
  • 153
1 vote
1 answer
52 views

I have a directory structure like bellow. ...
Ahmad Ismail's user avatar
  • 585
3 votes
1 answer
106 views

I asked a question yesterday (Protein databank file chain, segment and residue number modifier) and received a very informative answer by J_H whose feedback I have taken onboard. Some of the feedback ...
piJT's user avatar
  • 74
4 votes
1 answer
181 views

My first non-trivial bash script after fully moving to Linux Mint last week is attached (modify_cccp_bundles.in). The script ...
piJT's user avatar
  • 74
2 votes
2 answers
107 views

I am inputting a file of uniq -c | sort -nr and I need to take the string from the file, generate a unique id of the string and then Output a pipe separated value ...
Christian Bongiorno's user avatar
  • 668
4 votes
2 answers
251 views

I have a handful of files containing simple configuration in which I need to modify values. There are some useful constraints that simplify my implementation: The file consists of single lines of ...
Toby Speight's user avatar
  • 88.8k
5 votes
1 answer
190 views

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 ...
T145's user avatar
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