将bash函数转换为fish的函数 [英] Convert bash function to fish's

问题描述

有人可以帮助我将此bash函数转换为fish吗?如果您能解释一下"${@%%.app}，'s/ /.*/g’，"$@\等的含义，那也很好.

Can someone help me convert this bash function to fish? It would also be nice if you could explain what these do like "${@%%.app}", 's/ /.*/g’, "$@\" etc.

bid() {
    local shortname location

    # combine all args as regex
    # (and remove ".app" from the end if it exists due to autocomplete)
    shortname=$(echo "${@%%.app}"|sed 's/ /.*/g')
    # if the file is a full match in apps folder, roll with it
    if [ -d "/Applications/$shortname.app" ]; then
        location="/Applications/$shortname.app"
    else # otherwise, start searching
        location=$(mdfind -onlyin /Applications -onlyin ~/Applications -onlyin /Developer/Applications 'kMDItemKind==Application'|awk -F '/' -v re="$shortname" 'tolower($NF) ~ re {print $0}'|head -n1)
    fi
    # No results? Die.
    [[ -z $location || $location = "" ]] && echo "$1 not found, I quit" && return
    # Otherwise, find the bundleid using spotlight metadata
    bundleid=$(mdls -name kMDItemCFBundleIdentifier -r "$location")
    # return the result or an error message
    [[ -z $bundleid || $bundleid = "" ]] && echo "Error getting bundle ID for \"$@\"" || echo "$location: $bundleid"
}

非常感谢.

推荐答案

有关差异的一些说明:

• 设置变量
  • 重击:var=value
  • 鱼:set var value
  • setting variables
    • bash: var=value
    • fish: set var value
    • 重击:"$@"
    • 鱼:$argv
    • bash: "$@"
    • fish: $argv
    • 重击:local var
    • 鱼:set -l var
    • bash: local var
    • fish: set -l var
    • 重击:[[ ... ]]和[ ... ]
    • 鱼:test ...
    • bash: [[ ... ]] and [ ... ]
    • fish: test ...
    • 重击:if cond; then cmds; fi
    • 鱼:if cond; cmds; end
    • bash: if cond; then cmds; fi
    • fish: if cond; cmds; end
    • 重击:cmd1 && cmd2
    • 鱼:cmd1; and cmd2
    • 鱼(自鱼3.0起):cmd1 && cmd2
    • bash: cmd1 && cmd2
    • fish: cmd1; and cmd2
    • fish (as of fish 3.0): cmd1 && cmd2
    • 重击:output=$(pipeline)
    • 鱼:set output (pipeline)
    • bash: output=$(pipeline)
    • fish: set output (pipeline)
    • 重击:join <(sort file1) <(sort file2)
    • 鱼:join (sort file1 | psub) (sort file2 | psub)
    • bash: join <(sort file1) <(sort file2)
    • fish: join (sort file1 | psub) (sort file2 | psub)

    文档

    • bash: https://www.gnu.org/software/bash/manual/bashref.html
    • fish: http://fishshell.com/docs/current/index.html
    • bash: https://www.gnu.org/software/bash/manual/bashref.html
    • fish: http://fishshell.com/docs/current/index.html

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