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path=`ps ax | grep -i 'postmaster' | grep -o '\-D\(/Library/Post.*\)' | awk -F D '{print $NF}'`
log_dir="${path}/pg_log"
log_name=`sudo ls -1t ${log_dir} | head -n1`
log_file="${log_dir}/${log_name}"
echo ""
echo "=========== $log_file =========="
echo ""

sudo tail -f "$log_file"

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// ==UserScript==
// @name       Simplify Dict.cn
// @namespace  http://mitnk.com
// @version    0.1
// @description  Simplify dict cn 的生词本
// @match      http://scb.dict.cn/card.php*
// @copyright  2014+, mitnk
// for tampermonkey on Chrome.
// ==/UserScript==

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// via: http://c.learncodethehardway.org/book/ex20.html

#ifndef __dbg_h__
#define __dbg_h__

#include <stdio.h>
#include <errno.h>
#include <string.h>
#include <time.h>

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from xonsh.history.json import JsonHistory
from xonsh.history.sqlite import SqliteHistory

hist_json = JsonHistory(gc=False)

# if you want to have a check first
print('have {} json items'.format(len(list(hist_json.all_items()))))  # may very slow here

hist_db = SqliteHistory(gc=False)
for item in hist_json.all_items():

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"""
xonsh history backend with couchdb.

Copy this file to "~/.xonsh/history_couchdb.py" and put the following
into your "~/.xonshrc" file.

    import os.path
    import sys
    xonsh_ext_dir = os.path.expanduser('~/.xonsh')
    if os.path.isdir(xonsh_ext_dir):

mitnk

// Thanks: https://stackoverflow.com/a/53894298/665869
use std::collections::HashMap;
use std::sync::{Arc, Mutex};
use std::thread;

type Map = HashMap<String, String>;

fn handle_n_times(count: i32, arc_map: Arc<Mutex<Map>>) {
    for i in 0..count {
        let clone_arc = arc_map.clone();