コマンド結果をフィルタリングしてくれます。

https://github.com/mooz/percol
https://github.com/osdakira/python3-percol

$ sudo pip install percol

$ apt install percol

brew install cmigemo

curl -O http://www.atzm.org/etc/files/pymigemo/pymigemo-0.4.tar.gz
sudo pip install pymigemo-0.4.tar.gz

mkdir ~/.percol.d
vim ~/.percol.d/rc.py

import sys, commands
from percol.command import SelectorCommand
from percol.key import SPECIAL_KEYS
from percol.finder import FinderMultiQueryMigemo, FinderMultiQueryRegex

## prompt
# Case Insensitive / Match Method に応じてプロンプトに表示
def dynamic_prompt():
    prompt = ur""
    if percol.model.finder.__class__ == FinderMultiQueryMigemo:
        prompt += "[Migemo]"
    elif percol.model.finder.__class__ == FinderMultiQueryRegex:
        prompt += "[Regexp]"
    else:
        prompt += "[String]"
    if percol.model.finder.case_insensitive:
        prompt += "[a]"
    else:
        prompt += "[A]"
    prompt += "> %q"
    return prompt

percol.view.__class__.PROMPT = property(lambda self: dynamic_prompt())

## migemo
# Mac と Ubuntu で辞書のパスを変える
if sys.platform == "darwin":
    FinderMultiQueryMigemo.dictionary_path = "/usr/local/Cellar/cmigemo/20110227/share/migemo/utf-8/migemo-dict"
else:
    FinderMultiQueryMigemo.dictionary_path = "/usr/share/cmigemo/utf-8/migemo-dict"

## kill
# Mac の場合は kill（yank）をクリップボードと共有する
if sys.platform == "darwin":
    def copy_end_of_line_as_kill(self):
        commands.getoutput("echo " + self.model.query[self.model.caret:] + " | pbcopy")
        self.model.query  = self.model.query[:self.model.caret]

    def paste_as_yank(self):
        self.model.insert_string(commands.getoutput("pbpaste"))

    SelectorCommand.kill_end_of_line = copy_end_of_line_as_kill
    SelectorCommand.yank = paste_as_yank

## keymap
# Mac で delete（backspace）が効くようにする
SPECIAL_KEYS.update({
    127: '<backspace>'
})

• percol 入れて zsh と組み合わせたら超便利

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