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https://github.com/fish-shell/fish-shell
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20 lines
499 B
Fish
20 lines
499 B
Fish
# uses `whatis` if available to describe a command
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function __fish_whatis
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set -l cmd $argv[1]
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set -l fallback
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if set -q argv[2]
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set fallback $argv[2]
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end
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set -l description (whatis $cmd 2>/dev/null | string replace -r '.*? - ' '')[1]
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if string match -qr -- "." "$description"
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printf '%s\n' $description
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return 0
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else if not string match -q -- "$fallback" ""
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printf '%s\n' $fallback
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return 0
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else
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return 1
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end
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end
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