lsofer
nsd
Stars - the number of stars that a project has on GitHub. Growth - month over month growth in stars.
Activity is a relative number indicating how actively a project is being developed. Recent commits have higher weight than older ones.
For example, an activity of 9.0 indicates that a project is amongst the top 10% of the most actively developed projects that we are tracking.
lsofer
-
Not knowing the /proc file system
/proc is amazing once you get the hang of it and get a good understanding of what's all in there. Especially if you're doing low level performance tuning.
It's particularly helpful in larger infrastructures where tool the variability means differences in available tooling, and their output plus cli options. I'm sure /proc iteration has its own issues of variability across large infrastructres, but I haven't seen it. It's a fairly consistent API. Or at least it was, since I haven't touched a large infrastructure in some time.
When I got tired of `lsof` not being installed on hosts (or when its `-i` param isn't available) I ended up writing a script [1] that just iterates through /proc over ssh and grabs all inet sockets, environment variables, command line, etc from a set of hosts. Results in a null-delimited output that can then be fed into something like grafana to create network maps. Biggest problem with it is the use of pipes means all cores go to 100% for the few seconds it takes to run.
[1] https://github.com/red-bin/lsofer
-
Bash functions are better than I thought
Oh yeah, bash functions are great and absolutely abusable. Sometimes you need some grand hacks to get it to work well, but when it works well, it can do some magic. You can even export functions over ssh!
I wrote this a few years back which ran on bunches of hosts and fed into a infrastructure network mapper based on each hosts' open network sockets to other known hosts. It wasn't really feasible to install a set of tools on random hosts.. but I still had root ssh access across the board. So I needed something tool agnostic, short, auditable, and effectively guaranteed to work:
https://github.com/red-bin/lsofer/blob/master/lsofer.sh
nsd
-
Announcing Hush, a modern shell scripting language
Repository of scripts written in the language - https://github.com/ngs-lang/nsd
-
Bash functions are better than I thought
> there isn't really an entry point in murex scripts
I have a nice trick in NGS for that. Under the idea that "small scripts should not suffer", script is running top to bottom without "entry point". However, if the script has defined main() function, it is invoked (with command line arguments passed).
Example - https://github.com/ngs-lang/nsd/blob/afe0cad5e506ec4ee2fa924...
> `args` still contains more boilerplate code than I'm happy with
Is there anything preventing you to have exactly the same functionality but with syntactic sugar that it looks like parameters declaration? (Just to be clear, keeping all the ARGV machinery).
Something like (assuming local variables are supported; if not, it could still be $args[Flags] etc):
function hippo(name:str, hungry:bool) {
-
I love jq, I hate jq. Help a competent grepper get a grasp on the terse language!
NGS Scripts Dumpster - collection of small scripts in NGS
- GitHub – nushell/nushell: A new type of shell
-
No, you can't do it better in Python or bash (challenge)
Doing DevOps today? 99% either abuse bash or abuse a general purpose programming language.
bash does not meet any modern expectations from a programming language: syntax, error handling, data structures
General purpose languages such as Python, Ruby, etc are not domain specific enough to have the desired facilities.
Here is small example of straightforward solution to a small problem: list all CloudFormation stacks that are managed by the given CodePipeline.
https://github.com/ngs-lang/nsd/blob/02d66abb844b7dd6077b9976e3a03659cf4b3660/aws/codepipeline/pipeline-stacks.ngs
- Which CloudFormation stacks are managed by a CodePipeline - script
-
Delete CloudFormation Stack Including S3 Objects
The script is at https://github.com/ngs-lang/nsd/blob/master/aws/cloudformation/delete-stack.ngs
- What is your favorite shell and why
What are some alternatives?
hasura-ci-cd-action
ngs - Next Generation Shell (NGS)
bash-core - Core functions for any Bash program.
basalt - The rock-solid Bash package manager.
oh - A new Unix shell.
PPSS - Parallel Processing Shell Script
fx - Terminal JSON viewer & processor
zig - General-purpose programming language and toolchain for maintaining robust, optimal, and reusable software.
KeenWrite - Free, open-source, cross-platform desktop Markdown text editor with live preview, string interpolation, and math.
nushell - A new type of shell