Batch file error: "cant be processed syntactically at this point" -

-

my batch-file program crashes @ same point. happens before crashes this:

ping -n 6 127.0.0.1 1>nul: 2>nul:  -n cant processed syntactically @ point.  if ping -n 1 127.0.0.1|find "(0" >nul && goto loop

and window closes.

could maybe me fix problem? whole script:

@setlocal enableextensions enabledelayedexpansion  :loop  set ipaddr=127.0.0.1  ping -n 6 %ipaddr% >nul: 2>nul:  if ping -n 1 %ipaddr%|find "(0%" >nul && goto loop  echo connection lost  start "" http://www.google.com   else if ping -n 1 %ipaddr%|find "(100%" >nul && goto loop  echo connection ok  taskkill /fi "windowtitle eq google*" goto loop  endlocal

here advanced version 2 blocks of code executed dependent of whether connection ok or lost.

@setlocal enableextensions enabledelayedexpansion set ipaddr=127.0.0.1 :loop ping -n 6 %ipaddr% >nul: 2>nul: ping -n 1 %ipaddr%|find "(0%" >nul && (   echo connection ok   taskkill /fi "windowtitle eq google*"  ) || (   echo connection lost   tasklist /v /fi "windowtitle eq google*" || start "" http://www.google.com ) goto :loop

this "conventional way" %errorlevel% , if- else (same logic, above shorter way of doing it):

@setlocal enableextensions enabledelayedexpansion set ipaddr=127.0.0.1 :loop ping -n 6 %ipaddr% >nul: 2>nul: ping -n 1 %ipaddr%|find "(0%" >nul  if %errorlevel%==0 (   echo connection ok   taskkill /fi "windowtitle eq google*"  ) else (   echo connection lost   tasklist /v /fi "windowtitle eq google*" || start "" http://www.google.com ) goto :loop

i took set ipaddr... out of loop. no need again , again.

(just wondering, if google reachable, if connection got lost...)

edit reflect last comment. bit enhanced, action happens, if connection status changes. delete "log" function if don't need it, or redirect them file, if like.

@echo off setlocal enabledelayedexpansion set ipaddr=127.0.0.1 set "status=undefined"  :loop ping -n 2 %ipaddr% >nul: 2>nul: ping -n 1 %ipaddr%|find "(0%" >nul && (    set oldstatus=!status!   set status=online   if !status! neq !oldstatus! (     echo %date% %time% connection switched !oldstatus! !status!     taskkill /fi "windowtitle eq google*" >nul 2>&1   )  ) || (    set oldstatus=!status!   set status=offline   if !status! neq !oldstatus! (     echo %date% %time% connection switched !oldstatus! !status!     start "" http://www.google.com   )  ) goto :loop

Comments

Post a Comment

Popular posts from this blog

ruby - Trying to change last to "x"s to 23 -

-
i have been playing around irb , have string looks this: irb(main):072:0> puts ["[\"4354 5432 5432 xxxxx\", \"6547 6547 8543 xxxxx\", \"2344 6543 6674 xxxxx\", \"2346 6236 7543 xxxxx\", \"1273 5585 5587 xxxxx\"]"] => nil irb(main):073:0> what want gsub last 2 "x" s of each 17 digit combination, 23 . what i've tried far (i've been using rubular): a.gsub(/\d[x]/,"23") <= grabs "x" s i'm close a.gsub(/\w[x{2}]/,"23") <= grabs "x" s grabs two digits each combination. is there easier way i'm not understanding? a.gsub(/\d{4} \d{4} \d{4} xxx\kxx/, '23') \d{4} = 4 digits what \k drop matched far. can use don't replace entire number, still able validate have in desired format.
Read more

jquery - Clone last and append item to closest class -

-
this bare-bones code on page: <div class="list-container"> <div class="single-list-item"> <button>remove</button> </div> <div class="single-list-item"> <button>remove</button> </div> <div class="single-list-item"> <button>remove</button> </div> </div> <p><button class="add-list-item">add</button></p> <div class="list-container"> <div class="single-list-item"> <button>remove</button> </div> <div class="single-list-item"> <button>remove</button> </div> <div class="single-list-item"> <button>remove</button> </div> </div> <p><button class="add-list-item">add</button></p> <di...
Read more

css - Can I use the :after pseudo-element on an input field? -

-
i trying use :after css pseudo-element on input field, not work. if use span , works ok. <style type="text/css"> .mystyle:after {content:url(smiley.gif);} .mystyle {color:red;} </style> this works (puts smiley after "buu!" , before "some more") <span class="mystyle">buuu!</span>a more this not work - colors somevalue in red, there no smiley. <input class="mystyle" type="text" value="somevalue"> what doing wrong? should use pseudo-selector? note: cannot add span around input , because being generated third-party control. :after , :before not supported in internet explorer 7 , under, on elements. it's not meant used on replaced elements such form elements (inputs) , image elements . in other words it's impossible pure css. however if using jquery can use $(".mystyle").after("add smiley here"); api docs on .after to ...
Read more