sh / bash / ksh / csh

Summary

The shell-emulation ices (sh, bash, ksh, csh — and their !-prefixed variants) source the plugin or snippet in a sticky shell-emulation context so that functions defined within it also execute under that emulation.

Syntax / Usage

zi ice sh          # emulate sh; functions get sticky sh emulation
zi ice bash        # emulate bash (also disables SH_GLOB for Bash regexes)
zi ice ksh         # emulate ksh
zi ice csh         # emulate csh

# ! variants: apply additional options less critical for portability
zi ice !sh
zi ice !bash
zi ice !ksh
zi ice !csh

Details

Each ice sets up the corresponding Zsh emulation mode before sourcing the plugin and makes that mode sticky: every function declared during sourcing will also execute under that emulation when called later.

bash/!bash additionally disables the SH_GLOB option, which allows Bash-style extended regular expressions to work.

The ! variant enables some additional options that are technically not needed for compatibility but which the strict emulation mode would otherwise suppress.

Works with both plugins and snippets.

Examples

# Load a bash script that uses bashisms
zi ice bash
zi snippet ~/scripts/bash-tool.sh

# Load a ksh plugin with full sticky emulation
zi ice ksh
zi light user/ksh-plugin

See Also

• aliases
• subst