Finding all files containing a text string on Linux

Here is the Command:

grep -rnw 'directory' -e "pattern"

-r or -R is recursive
-n is line number
-w stands match the whole word
-l (letter L) can be added to have just the file name.


		
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Create a clickable slide show

<html>
<head>
<script type="text/javascript">

var slideimages = new Array() // create new array to preload images
slideimages[0] = new Image() // create new instance of image object
slideimages[0].src = "firstcar.gif" // set image object src property to an image's src, preloading that image in the process
slideimages[1] = new Image()
slideimages[1].src = "secondcar.gif"
slideimages[2] = new Image()
slideimages[2].src = "thirdcar.gif"

</script>
 </head>
<body>
<a href="javascript:slidelink()"><img src="firstcar.gif" id="slide" width=100 height=56 /></a>

<script type="text/javascript">

//variable that will increment through the images
var step = 0
var whichimage = 0

function slideit(){
 //if browser does not support the image object, exit.
 if (!document.images)
  return
 document.getElementById('slide').src = slideimages[step].src
 whichimage = step
 if (step<2)
  step++
 else
  step=0
 //call function "slideit()" every 2.5 seconds
 setTimeout("slideit()",2500)
}

function slidelink(){
 if (whichimage == 0)
  window.location = "link1.htm"
 else if (whichimage == 1)
  window.location = "link2.htm"
 else if (whichimage == 2)
  window.location = "link3.htm"
}

slideit()

</script>
</body>
</html>

source: http://www.javascriptkit.com/howto/show3.shtml

Remove \r \n from database data

test_db=# select address from test_table;

58/171-G, RAJAPURAM,\r                                                                                                                                                                                                                                                                                                                                                                                                              +
PALANIAPPA NAGAR,\r                                                                                                                                                                                                                                                                                                                                                                                                                 +
SALEM
TS.No.5823,SANTHANATHAPURAM FOURTH STREET\r                                                                                                                                                                                                                                                                                                                                                                                         +

 

solution
test_db=# update test_table set address= regexp_replace(address, E'[\\n\\r]+’, ‘ ‘, ‘g’);

test_db=# select address from test_table;

58/171-G, RAJAPURAM,

PALANIAPPA NAGAR,

SALEM TS.No.5823,SANTHANATHAPURAM FOURTH STREET