I was just looking at this post: https://www.unix.com/shell-programming-scripting/22893-delete-multiple-empty-lines.html.
and I am looking to achieve the same with sed. So the idea is to delete lines from a file where a certain field has no value.
Inputfile:
EMID MMDDYY HOURS JOB EMNAME
0241... (4 Replies)
Can somebody explain why my sed command is not working.
I do the folloinwg:
Generates a binary file to /tmp/x1.out
/usr/lib/sa/sa2 -s 4:00 -e 8:00 -i 3600 -A -o /tmp/x1.out
decodes the file (no problem so far)
sar -f /tmp/x1.out
When I do this it does not appear to delete the... (4 Replies)
Hello:
I searched here for "vi -c" but found no hits.
How can I use vi -c to remove ALL empty lines, regardless of how many?
I tried
<code>
vi -c ":g/^$/d | wq" filename
</code>
but I have to run it several times.
This is NOT homework. :)
Thanks for your time. (3 Replies)
is there a way with sed to removed more than one set of lines in one line?
so i mean
sed ${firstElem},${lastIndex}d web.xml > web1.xml
this will delete lines between ${firstElem},${lastIndex}
i want in the same line to do somethinkg like this (doesn't work so far)
sed... (3 Replies)
Hi
What I'm trying to do is delete every blank line upto a certain number, so for instance I only want to delete the first 4 empty lines within a file, I know how to delete every line with:
sed '/^$/d'
But I can't figure out how to limit it to only the first 4 occourances
I though it... (5 Replies)
Hi,
i need a single command to create multiple empty files(no trailing lines as well) and empty the files if already existing.
please let me know or if this has been ansered, if some ocan share the link please, thanks
> newfile.txt
or
:> newfile.txt
do not work (4 Replies)
Hi,
In a file we have the following data like as below
abcdef="cfg-1-15"
bmmdda-g-45-2
yhdiao"rtg-1-df-34"
I need a sed/awk command to replace the above string with empty.
Thx, (1 Reply)
Discussion started by: kirankumar
1 Replies
LEARN ABOUT PHP
imagelayereffect
IMAGELAYEREFFECT(3) 1 IMAGELAYEREFFECT(3)imagelayereffect - Set the alpha blending flag to use the bundled libgd layering effectsSYNOPSIS
bool imagelayereffect (resource $image, int $effect)
DESCRIPTION
Set the alpha blending flag to use the bundled libgd layering effects.
PARAMETERS
o $
image -An image resource, returned by one of the image creation functions, such as imagecreatetruecolor(3).
o $effect
- One of the following constants:
o IMG_EFFECT_REPLACE - Use pixel replacement (equivalent of passing TRUE to imagealphablending(3))
o IMG_EFFECT_ALPHABLEND - Use normal pixel blending (equivalent of passing FALSE to imagealphablending(3))
o IMG_EFFECT_NORMAL - Same as IMG_EFFECT_ALPHABLEND.
o IMG_EFFECT_OVERLAY - Overlay has the effect that black background pixels will remain black, white background pixels will
remain white, but grey background pixels will take the colour of the foreground pixel.
RETURN VALUES
Returns TRUE on success or FALSE on failure.
EXAMPLES
Example #1
imagelayereffect(3) example
<?php
// Setup an image
$im = imagecreatetruecolor(100, 100);
// Set a background
imagefilledrectangle($im, 0, 0, 100, 100, imagecolorallocate($im, 220, 220, 220));
// Apply the overlay alpha blending flag
imagelayereffect($im, IMG_EFFECT_OVERLAY);
// Draw two grey ellipses
imagefilledellipse($im, 50, 50, 40, 40, imagecolorallocate($im, 100, 255, 100));
imagefilledellipse($im, 50, 50, 50, 80, imagecolorallocate($im, 100, 100, 255));
imagefilledellipse($im, 50, 50, 80, 50, imagecolorallocate($im, 255, 100, 100));
// Output
header('Content-type: image/png');
imagepng($im);
imagedestroy($im);
?>
The above example will output something similar to:[NOT DISPLAYABLE MEDIA]Output of example : imagelayereffect()
NOTES
Note
This function requires GD 2.0.1 or later (2.0.28 or later is recommended).
PHP Documentation Group IMAGELAYEREFFECT(3)