Bashsh

Improves your Bash scripts.

Installation via NPM

npm install -g bashsh

Installation via bpkg

bpkg install -g mcrio/bashsh

Usage

The following shebang

#!/usr/bin/env bashsh-0

gives you:

• set -e by default:

  echo hello ; false ; echo world
  

  will only print hello.

• CMD for showing executed commands in bold on stderr:

  CMD git status
  

• CMD_STR prints the string in bold on stderr and runs it with eval:

  CMD_STR 'gitk --all &'
  

• ECHO prints the string in bold on stderr:

  ECHO wget ... example.com
  wget --cookies=on --load-cookies wget-tmp/cookies.txt --keep-session-cookies --save-cookies wget-tmp/cookies.txt example.com
  

• MSG prints a remark in bold on stderr, formatted as a comment:

  MSG hello world
  

  prints # hello world.

• READ_P works like read -p but prints the first parameter using MSG:

  READ_P 'What is your name? ' your_name
  

• QUOTED prints the given arguments in a way that is safe to pass to commands:

  echo "My arguments are: $(QUOTED "$@")"
  

You can find a few examples in the examples directory. Also, my ~/bin directory makes heavy use of this project.

Caveats / known limitations

You cannot just

npm install bashsh

and then use

#!/usr/bin/env ./node_modules/.bin/bashsh-0

as the path of the command supplied to env will be interpreted as relative to the working directory, not to the script's directory.

Working on Bashsh

If you would like to work on Bashsh, CONTRIBUTING.md should give you the most important information to get you started quickly.

License

The MIT License (MIT)

Copyright (c) 2014 Felix Rabe

Permission is hereby granted, free of charge, to any person obtaining a copy of this software and associated documentation files (the "Software"), to deal in the Software without restriction, including without limitation the rights to use, copy, modify, merge, publish, distribute, sublicense, and/or sell copies of the Software, and to permit persons to whom the Software is furnished to do so, subject to the following conditions:

The above copyright notice and this permission notice shall be included in all copies or substantial portions of the Software.

THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY, FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM, OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE SOFTWARE.