• Dynamic variable naming.
• Internal variables.
• Turn the non-functions into functions.
  • This is so tests can be written.
  • It also shows a working use case for the task.
• Add a CONTRIBUTING.md.
• Look into side effects of using shopt and set.
• /dev/tcp
• Convert to pdf
  • Add a cover.
  • Add references.
• Write some

I am wondering if autoenv could not be used in complex CI environments where we have multiple steps and where we need to save/restore status between different steps.

We are currently doing appending variables inside some env_jenkins.properties files and on some some steps (builders) and on others we do source env_jenkins.properties in order to load them.

If autoenv would work also for

I think it would be valuable to explicitly talk about whitespace requirements in [ ] and [[ ]] conditionals--this tripped me up when learning Bash and I know it's a pain point for a lot of developers.

The way I like to think about it is that [ and [[ are commands/builtins (like echo, etc), as opposed to being part of Bash syntax. For this reason, the command name and each of its argumen

👷 Bash/Shell最佳实践与安全编程

• Google Shell Style Guide
  • https://google.github.io/styleguide/shell.xml
  • 中文版 https://zh-google-styleguide.readthedocs.io/en/latest/google-shell-styleguide/background/
• 编写可靠shell脚本的八个建议
  https://www.xshell.net/shell/1577.html
• Bash Pitfalls: 编程易犯的错误 - 团子的小窝
  • http://kodango.com/bash-pitfalls-part-1
  • http://kodango.com/bash-pitfal

The -h/--help flag is broken:

$ with -h
/usr/bin/with: line 46: print_help: command not found
error: "-h" is not a valid executable

Looking at the source, I believe that line 46 should be calling print_usage and/or print_options, not print_help (which doesn't exist).

When a compiled script is run from $PATH it appears to be unable to locate its own file path.

An example with the JRuby bash launcher:

[] ~/projects/jruby $ bin/jruby.bash -e 'puts ENV_JAVA["jruby.home"]'
/Users/headius/projects/jruby

[] ~/projects/jruby $ jruby.bash -e 'puts ENV_JAVA["jruby.home"]'
/Users/headius/projects/jruby

[] ~/projects/jruby $ shc -f bin/jruby.bash -o bin

Prerequisite for running on Debian:

$ apt install flex bison libelf-dev libssl-dev bc cpio libncurses5-dev xorriso wget make gawk gcc

Is kmod necessary?

Dash allows users to contribute docsets, as outlined in zealdocs/zeal#170. dasht should provide a command to automatically download and extract these as well.

(See also #4.)

Currently ARG_OPTIONAL_BOOLEAN is displayed like so:

$ ./foo.sh --help
foo!
Usage: ./foo.sh [--(no-)no-deps]
-n,--no-deps,--no-no-deps: some description

With many of those the negating (no-) text adds a lot of visual noise and can be borderline silly as in the above case. I would imagine that most people have no use for an option flag that equals the application's default va

In the docs it says:

This plugin allows you to run any shell commands before or after webpack builds. This will work for both webpack and webpack-dev-server.

maybe it could specify it works with webpack --watch too?

Morbig fails with "Failure: Unsupported expansion in here document delimiter" on the following
script

cat << $x
kgjlkfdjgkdflkg
$x

bash accepts it both with with and without --posix, and dash gives an error.

I think that the behaviour of bash is correct since nothing in the standard says that the delimiter word may not contain variables, subshells, or globs. However these