暫停直到登錄用戶空閒才能在OS X中運行shell腳本

Question

我編寫了一個腳本，用於檢查可用內存（使用vmstat和awk），然後在內存不足25％時釋放內存。然後，清除後，我的Mac說（是的愚蠢的機器人的聲音）大聲的可用內存的整數。我覺得它比一個消息框彈出不那麼侵入性，但我的妻子HATES它，因爲她在家工作了幾天，它嚇了她一跳。

我正在尋找一種方法來設置全局變量（甚至觸摸/刪除臨時文件），當檢測到擊鍵或鼠標移動時。這樣，當機器閒置時，機器人的聲音將會保持安靜。我一直在尋找大約3個小時，沒有運氣。我是在正確的軌道上這個片段：

---

set idleTime to (do shell script "ioreg -c IOHIDSystem | perl -ane 'if (/Idle/) {$idle=(pop @F)/1000000000; print $idle,\"\";last}'") 
set initIdleTime to idleTime repeat while idleTime ≥ initIdleTime 
set idleTime to (do shell script "ioreg -c IOHIDSystem | perl -ane 'if (/Idle/) {$idle=(pop @F)/1000000000; print $idle,\"\";last}'") 
end repeat 

---

它「凍結」的提示，然後打印出來，當鼠標移到一個數字或一個鍵被按下，但我不知道因此我無法修改它。如果可能，我寧願堅持使用bash。

順便說一下，這裏是任何人想要使用它們的腳本。有些人修改了第一個，複製了第二個，寫了第三個。我有第三個設置在cron中每10分鐘運行一次。

#!/bin/bash 

# -- guns 
# 
# Purge inactive memory with rapid i/o 
# 
# 26 November 2007 
# 'killall $command' is still printing to the terminal 

# declare variables before= after= memPurged= pageSize= pagesPurged= AvailMem= timeout=5 # in seconds command="du /" 

showUsage="Usage: $(basename $0) [-h] [-t seconds] [-c "command"]" 

function printError() { echo >&2 $showUsage echo >&2 echo >&2 "See '$(basename $0) -h' for more details." } 

function printHelp() { echo "Purge inactive memory with rapid i/o." echo echo $showUsage echo echo "Supported Options" echo "-----------------" echo "-t{seconds}tSet the amount of time for the command to run. Default" echo "ttis 5 seconds." echo "-c{"command"}tSet the command to run. Default is 'du /'" echo "-httDisplay this help and exit" } 

function getMemFree() { 
# the "$3-0" bit is a dirty way to chop the period at the end vm_stat | awk '/Pages free/ {intMemFree=$3-0; print intMemFree}' } 

function getPageSize() { vm_stat | awk '/page size/ {print $8}' } 

# 
# Main 
# 

while getopts ":ht:c:" option; do case $option in h) printHelp; exit;; t) timeout=$OPTARG;; c) command=$OPTARG;; ?) echo >&2 "Invalid option!n"; printError; exit 3 esac done shift $(($OPTIND-1)) 

before=$(getMemFree) 

purge 

# set variables after=$(getMemFree) let pagesPurged=$after-$before pageSize=$(getPageSize) 




    # calculate and print let memPurged=($pagesPurged * $pageSize/2**20) 
let availMem=($after * $pageSize/2**20) printf "%d MB purged." $memPurged 
say $availMem 

和

#!/usr/bin/python 

import subprocess 
import re 

# Get process info 
ps = subprocess.Popen(['ps', '-caxm', '-orss,comm'], stdout=subprocess.PIPE).communicate()[0] 
vm = subprocess.Popen(['vm_stat'], stdout=subprocess.PIPE).communicate()[0] 

# Iterate processes 
processLines = ps.split('\n') 
sep = re.compile('[\s]+') 
rssTotal = 0 # kB 
for row in range(1,len(processLines)): 
    rowText = processLines[row].strip() 
    rowElements = sep.split(rowText) 
    try: 
     rss = float(rowElements[0]) * 1024 
    except: 
     rss = 0 # ignore... 
    rssTotal += rss 

# Process vm_stat 
vmLines = vm.split('\n') 
sep = re.compile(':[\s]+') 
vmStats = {} 
for row in range(1,len(vmLines)-2): 
    rowText = vmLines[row].strip() 
    rowElements = sep.split(rowText) 
    vmStats[(rowElements[0])] = int(rowElements[1].strip('\.')) * 4096 

print '%d' % (vmStats["Pages free"]/1024/1024) 

最後

#!/bin/bash 

mf=$(perl ~/scripts/py/memfree.py) 

if [ "$mf" -lt 2000 ] 
then 
sh2 ~/scripts/memclean.sh 
else 
exit 
fi 

Answer 1

WINRAR！

http://hints.macworld.com/article.php?story=20040330161158532

#!/bin/sh 

echo $((`ioreg -c IOHIDSystem | sed -e '/HIDIdleTime/ !{ d' -e 't' -e '}' -e 's/.* = //g' -e 'q'`/1000000000)) 

我希望這可以幫助別人。多謝你們。

本月3日