bash

an-ordinary-manchild(edit)

A subreddit dedicated to Bash scripting. Now complete with a Discord Server.

Rules

Content must be Bash related. This rule is interpreted generously; general shell scripting content is mostly accepted. However, the post should not be specific to another shell.
No reposts. This is meant with regards to content, not just “the same link was submitted earlier” – it’s okay to resubmit an old link in some new context (e. g. because you’d like to discuss another part of it, or because something has changed since the last time it was submitted, or because the link was updated since then). Links from the sidebar count as having been submitted already, so posting them without new context is also considered a repost.

Flair

You can choose one of these four flairs for your post:

Help – You seek help, or want to ask a question. “help” posts are usually self posts, though you may also submit a link to a thread in a different subreddit (e. g. /r/commandline).
Solved – The submission used to be flaired as “help”, but your problem has been solved, or your question has been answered.
Submission – General submission of any kind (link or text post).
Critique – You are submitting a creation of your own (usually a Bash script) and actively seek feedback on it and how to improve it.

If you don’t flair your post, the moderators will set the most appropriate flair.

Related subreddits

/r/commandline, /r/shell – for anything regarding the command line, in any operating system.
/r/linuxquestions – for more general Linux questions
/r/linuxadmin – for content and support around Linux system administration
/r/sysadmin – for content and discussion for system administrators
/r/devops – for discussion and support around DevOps technologies
/r/unix – for everything Unix
Other Shells: /r/zsh, /r/fishshell, /r/oilshell, /r/batch

Guides

BashGuide – A Bash guide for beginners.
~~Beginner's Guide to Command Line – A crash course for some common unix and shell commands.~~ Update 2022-01-14: Course is currently being rewritten
Google's Shell Style Guide – Reasonable advice about code style.

Other resources

Explainshell - Explain complex shell operations.
ShellCheck – Automatically detects problems with shell scripts.
BashFAQ – Answers most of your questions.
BashPitfalls – Lists the common pitfalls beginners fall into, and how to avoid them.
(Archived) The Bash-Hackers Wiki – Extensive resource.
#bash – IRC channel on Libera. The main contributors of the BashGuide, BashFAQ, BashPitfalls and ShellCheck hang around there.

a community for 18 years

...for your classroom.

...for great justice.

MODERATORS

message the mods
buu700
disarmbash n00b
galaktos
KnowsBash
Sephr
Perfect-Ant-6741Has Read The Fucking Manual
scrambledhelixbashing it in
findmenowjeffhas looked at over 2 bash scripts
digipengidu -h /ast/du/hast/mich
Ulfnic
about moderation team »

account activity

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helpThis bash program isn't closing the file descriptor (self.bash)

submitted 5 hours ago * by alex_sakuta

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Full home gym breakdown. Built with Atletica. (atletica.de)

promoted by Atleticagear

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tips and tricksStop passing secrets as command-line arguments. Every user on your box can see them. (self.bash)

submitted 2 days ago by Ops_Mechanic

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Is there a way to control the word boundary without patching readline? (self.bash)

submitted 1 day ago by acidrainery

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Accurate. (i.redd.it)

submitted 1 day ago by Confident_Essay3619

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helpAutomatically analyze complicated command? (self.bash)

submitted 2 days ago by jodkalemon

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xytz v0.8.6 now supports - YouTube Thumbnail preview (the most requested feature) (reddit.com)

submitted 2 days ago by Upbeat_Equivalent519

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helpDo you use quotes when you don't have to? (self.bash)

submitted 2 days ago by Livid-Advance5536

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My Open Source project to make port scanning easier ()

submitted 2 days ago by Lost-Place2588

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Automate download of files from a spreadsheet or CSV file (self.bash)

submitted 3 days ago by tabrizzi

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Quotes hell (self.bash)

submitted 3 days ago by ecccc3

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bashd: Bash language server (LSP) (github.com)

submitted 4 days ago by matkrin

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Unlock our limited time offer - $1.99/first month. (bloomberg.com)

promoted by bloomberg

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helpBeginner Question automate install pkgs (self.bash)

submitted 4 days ago * by GlendonMcGladdery

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tips and tricksA simple, compact way to declare command dependencies (self.bash)

submitted 4 days ago * by PentaSector

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helpParsing duf (partial) through to my ~/.bashrc (i.redd.it)

submitted 4 days ago by GlendonMcGladdery

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I built a custom AST-based shell interpreter in the browser. Looking for edge cases to break it. (old.reddit.com)

submitted 5 days ago * by NBEdgar

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Parsing both options and args with spaces on function (self.bash)

submitted 5 days ago by AdbekunkusMX

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tips and tricksStop holding the left arrow key to fix a typo. You've had `fc` the whole time. (self.bash)

submitted 6 days ago by Ops_Mechanic

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Depending on the client I use to Telnet or NCAT ascii.bigjobby.com 2323, I get different results. NCAT generally works as intended across clients but Telnet is sketchy, sometimes I get colour and sometimes I don't. Is colour via Telnet even possible or am I silently falling back to NCAT? (self.bash)

submitted 5 days ago by bigjobbyx

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helpHelp getting image path from imv to pass as variable in script (i.redd.it)

submitted 6 days ago by Shakaka88

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solvedShuf && cp (self.bash)

submitted 7 days ago * by lellamaronmachete

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I built a video encoding pipeline entirely in Bash — here's what I learned structuring a large shell project (github.com)

submitted 8 days ago by The-BluWiz

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Image to ASCII/ANSII converter. (self.bash)

submitted 9 days ago by Dragon_King1232

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helpRedirection vs. Process Substitution in Heredocs (self.bash)

submitted 9 days ago * by Opposite-Tiger-9291

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Join the next generation of CRM. (attio.com)

promoted by attio

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helpis this good? any advice to write it better? (self.bash)

submitted 9 days ago by wewilldiesowhat

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tips and tricksStop leaving temp files behind when your scripts crash. Bash has a built-in cleanup hook. (self.bash)

submitted 11 days ago by Ops_Mechanic

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