KornShell VS SelfControl

• Compatibility
  KornShell (ksh) maintains backward compatibility with Bourne Shell (sh), making it easy for users familiar with sh to transition without altering their existing scripts substantially.
• Advanced Scripting Features
  ksh offers advanced scripting capabilities such as associative arrays, floating-point arithmetic, and built-in regular expressions, providing more powerful and flexible scripting tools.
• Job Control
  It provides robust job control, allowing users to manage and switch between multiple background tasks and processes easily.
• Interactive Use
  ksh supports features like command aliasing, history manipulation, and inline editing, enhancing its utility in interactive command-line environments.
• Performance
  ksh scripts often execute faster than those written in other shells like csh, due to more efficient resource management and execution mechanisms.

Possible disadvantages

• Complexity
  ksh is more complex compared to simpler shells like sh, making it potentially overwhelming for beginners or those seeking simplicity.
• Portability
  Not all systems come with ksh pre-installed, and differences between ksh88 and ksh93 can lead to portability issues across different Unix-like systems.
• Learning Curve
  Due to its rich feature set, ksh has a steeper learning curve, which could be a barrier for new users unfamiliar with shell scripting.
• Limited Adoption
  Despite its capabilities, ksh is not as widely adopted as other shells like bash or zsh, meaning less community support and fewer resources available.
• Licensing
  ksh is under the Common Public License, which may pose constraints for users or organizations compared to more permissively licensed shells.

• Effective Website Blocking
  SelfControl blocks access to distracting websites based on a customizable blocklist, helping users stay focused.
• Timer Functionality
  Users can set a timer for how long they want websites to remain blocked, ensuring focused work periods without distraction.
• Free to Use
  SelfControl is open-source and free to download and use, making it accessible to anyone without financial barriers.
• Easy to Use
  The interface is straightforward and user-friendly, allowing users to quickly set their preferences and get started.

Possible disadvantages

• Mac-Only
  SelfControl is only available for macOS, excluding Windows and Linux users from using the application.
• No Undo Option
  Once the block period is set and started, it cannot be undone even by restarting the computer, which could be an issue if access to blocked sites is needed unexpectedly.
• Limited Feature Set
  The app primarily focuses on website blocking, lacking additional productivity tools or features like app blocking or usage analytics.
• No Scheduled Blocking
  SelfControl does not offer the ability to schedule block sessions in advance, meaning users must manually start each session.

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How to block websites that distract you ? Selfcontrol [Mac App review and tutorial]

More videos

• Trying to Set-up android9(ver6) in VirtualBox

  Well now I'm at the point that I see it's calling for the Korn shell, which I'm not directly familiar with, and seemed to stop on the mouse input driver. I'll change my VBox mouse device settings and see what happens from there... Source: over 4 years ago

• Oregon School Cell Phone Ban: 'Engaged Students, Joyful Teachers'

  A combination of https://selfcontrolapp.com/ and Hammerspoon automation and you can lock yourself out of pretty much everything. - Source: Hacker News / 7 months ago

• Kiki – The accountability monster for people who are easily distracted

  Happy to see it still exists, and free https://selfcontrolapp.com/. - Source: Hacker News / 8 months ago

• How do you fight YouTube addiction and procrastination? I'm struggling with it

  I have found that a useful method for getting distractions off my work laptop has been https://selfcontrolapp.com/ (if you're on mac). - Source: Hacker News / about 1 year ago

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