How to view or display a logfile in real time on screen in linux
How do I see the log file in real time including all incoming logs as well?
You can use the tail command in linux command line which outputs the last part of files in real time including all incoming logs to a file. So you can view the last parts of your logs file (like access logs for the server) using this in real time!
Note: you may need to login as root user to view log files.
Command
tail -f file-name command
If your log file name is /var/log/lighttpd/access.log, enter:
tail -f /var/log/lighttpd/access.log
If your php log file name is /var/log/lighttpd/scripts.log, enter
tail -f /var/log/lighttpd/scripts.log
You will get a scrolling view of the /var/log/lighttpd/scripts.log for all incoming entries on screen. To stop simply hit CTRL+C.
How to show the various time zones of the world on your website
Here is how you can show the various time zones of the world on your website.
Put the code below within your site's source code. If you dont know how to implement this code into your site, please goto how to implement the code to your website
Code:
<!-- this script is from www.manycodes.com -->
<table border="0" width="200" cellspacing="0" cellpadding="3">
<form name="where">
<tr>
<td width="100%">
<select name="city" size="1" onchange="updateclock(this);">
<option value="" selected>Local time</option>
<option value="0">London GMT</option>
<option value="1">Rome</option>
<option value="7">Bangkok</option>
<option value="8">Hong Kong</option>
<option value="9">Tokyo</option>
<option value="10">Sydney</option>
<option value="12">Fiji</option>
<option value="-10">Hawaii</option>
<option value="-8">San Francisco</option>
<option value="-5">New York</option>
<option value="-3">Buenos Aires</option>
</select>
</td>
</tr>
<tr>
<td width="100%">
<script language="JavaScript">
/*
Drop Down World Clock- By Learn iran (http://www.webloger.5u.com)
Portions of code by Kurt @ http://www.webloger.5u.com/
This credit notice must stay intact
*/
if (document.all||document.getElementById)
document.write('<span id="worldclock" style="font:bold 16px Arial;"></span><br>')
zone=0;
isitlocal=true;
ampm='';
function updateclock(z){
zone=z.options[z.selectedIndex].value;
isitlocal=(z.options[0].selected)?true:false;
}
function WorldClock(){
now=new Date();
ofst=now.getTimezoneOffset()/60;
secs=now.getSeconds();
sec=-1.57+Math.PI*secs/30;
mins=now.getMinutes();
min=-1.57+Math.PI*mins/30;
hr=(isitlocal)?now.getHours():(now.getHours() + parseInt(ofst)) + parseInt(zone);
hrs=-1.575+Math.PI*hr/6+Math.PI*parseInt(now.getMinutes())/360;
if (hr < 0) hr+=24;
if (hr > 23) hr-=24;
ampm = (hr > 11)?"PM":"AM";
statusampm = ampm.toLowerCase();
hr2 = hr;
if (hr2 == 0) hr2=12;
(hr2 < 13)?hr2:hr2 %= 12;
if (hr2<10) hr2="0"+hr2
var finaltime=hr2+':'+((mins < 10)?"0"+mins:mins)+':'+((secs < 10)?"0"+secs:secs)+' '+statusampm;
if (document.all)
worldclock.innerHTML=finaltime
else if (document.getElementById)
document.getElementById("worldclock").innerHTML=finaltime
else if (document.layers){
document.worldclockns.document.worldclockns2.document.write(finaltime)
document.worldclockns.document.worldclockns2.document.close()
}
setTimeout('WorldClock()',1000);
}
window.onload=WorldClock
//-->
</script>
<!--Place holder for NS4 only-->
<ilayer id="worldclockns" width=100% height=35><layer id="worldclockns2" width=100% height=35 left=0 top=0 style="font:bold 16px Arial;"></layer></ilayer>
</td>
</form>
</tr>
</table>
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