Faster Shell Startup with Shell Switching

This page summarizes the projects mentioned and recommended in the original post on news.ycombinator.com

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  • zsh-bench

    Benchmark for interactive Zsh

  • Unfortunately, running exit is not a great strategy for running benchmarks. For zsh specifically, plugin managers are optimized for fast exit.

    romkatv did a great write-up and benchmark within the context of zsh[0]. It's a great read.

    [0] https://github.com/romkatv/zsh-bench#how-not-to-benchmark

  • ksh

    ksh 93u+m: KornShell lives! | Latest release: https://github.com/ksh93/ksh/releases

  • David Korn's ksh93 was passed on to a new set of developers, who attempted to release a new version; AT&T rolled back these changes due to performance problems which raised questions of support status. It does appear that ksh93 development has resumed, and a new version was released late last year.

    https://github.com/ksh93/ksh/releases

    The independent pdksh spawned mksh, which is the default shell used in Android (as it has a BSD license); mksh appears to be very much active.

    http://www.mirbsd.org/mksh.htm [https site has cert problems]

    OpenBSD also forked oksh from pdksh. This is certainly well-maintained.

    https://github.com/ibara/oksh

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  • oksh

    Portable OpenBSD ksh, based on the Public Domain Korn Shell (pdksh).

  • David Korn's ksh93 was passed on to a new set of developers, who attempted to release a new version; AT&T rolled back these changes due to performance problems which raised questions of support status. It does appear that ksh93 development has resumed, and a new version was released late last year.

    https://github.com/ksh93/ksh/releases

    The independent pdksh spawned mksh, which is the default shell used in Android (as it has a BSD license); mksh appears to be very much active.

    http://www.mirbsd.org/mksh.htm [https site has cert problems]

    OpenBSD also forked oksh from pdksh. This is certainly well-maintained.

    https://github.com/ibara/oksh

NOTE: The number of mentions on this list indicates mentions on common posts plus user suggested alternatives. Hence, a higher number means a more popular project.

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