Linux Reader 4.0Ext 2/3/4, UFS2, HFS and ReiserFS/4 for Windows
Linux Reader 4.0
Ext 2/3/4, UFS2, HFS and ReiserFS/4 for Windows

What is a Bash Linter and How to Use it

A lint, or linter, is a utility tool used to check for errors in programming scripts. Also, lint helps to analyze code and check for bugs and stylistic errors. That said, a bash linter is a tool used by Linux programmers to check for bugs, errors, and suspicious constructs in bash shell scripts.

Here you will find out:

  • what a ShellCheck is
  • how you can use a ShellCheck
  • how to install shell script syntax checker
  • when DiskInternals can help you

Are you ready? Let's read!

ShellCheck is a bash linter

For Linux system operators, ShellCheck is a GPLv3 tool that helps to check for errors in bash/sh shell scripts. ShellCheck is a bash linter, a static analysis tool for bash and sh shell scripts. If you want to know if there’s a bug in a script, you can make use of this tool. Using the ShellCheck tool will definitely increase your productivity. This bash linter can identify syntax issues, semantic problems, subtle caveats, corner cases, and pitfalls that may lead to errors when running your scripts.

How ShellCheck can be used

There are quite a number of ways to use ShellCheck, the bash linter.

On your terminal

Simply run “shellcheckyourscript” for instant output.

On the web

Paste the shell script you want to check into https://www.shellcheck.net

Using an editor

ShellCheck is available on the following editors:

  • Vim: use ALE, Neomake, or Syntastic
  • Emacs: use Flycheck or Flymake
  • Sublime Edit: use SublimeLinter
  • Atom: use AtomLinter
  • VSCode: use vscode-shellcheck

In your build or test suites

ShellCheck can be added to builds or test suites, even though it is actually meant for interactive use. You can add a ShellCheck command as part of the process, since it uses the exit codes.

Install this bash script checker

On a local system, the easiest way to install this tool is by using a package manager. It is advisable to manually install a specific ShellCheck version.

Installing on systems with Cabal

This will install ShellCheck to ~/.cabal/bin.

On Debian/Ubuntu Linux

Or

Gentoo-based distros:

Installing on stack systems

Installs to ~/.local/bin.

Arch Linux distros

EPEL-based distros:

Installing on OS X with homebrew

Not only for interactive use

ShellCheck is not only for interactive use; thus, it can be integrated with test suites and builds. Also, some platforms and services have ShellCheck pre-installed on them. The platforms and services include Travis CI, Code Climate, Github (Linux), Codacy, Code Factor, and GitLab. SonarQube also supports ShellCheck; however, it requires sonar-shellcheck-plugin. If you work on any of these platforms, then you may not need to install ShellCheck on your system.

Use Linux Reader in Windows

Quite a lot of people are already using DiskInternals Linux Reader to open Linux files on Windows. DiskInternals Linux Reader is an intuitive freeware software tool with an easy-to-read and navigable interface. It appears to be the best utility tool for dual-boot setup users and virtual machine users. This software scans Windows PCs to fetch all the Linux partitions and then allow you to access the important files inside. Linux Reader provides access to the following file systems: Ext2/3/4, ReiserFS, Reiser4, HFS, HFS+, FAT, exFAT, NTFS, ReFS, UFS2, RomFS(reader), ZFS (preview only*), XFS (preview only*), Hikvision NAS and DVR (preview only*). It is a handy tool for every programmer.

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