The original file must retain intact but it should get empty. Actually, the contents needs to be processed by another process and for new entries, the file must remain there with zero records.
hi,
i encounter a quite a new things for me.
lets sat my test.txt modified date is 6th of July 2005.
then i execute the following command:
"cp test.txt testfolder/test.txt"
when i go to execute "ls -l" command...
the test.txt modified date become today date!
but if i execute:
... (5 Replies)
All,
I am new to unix and i have the following requirement.
I have file(s) landing into input directory with timestamp, first i want to copy all these files into seperate directory then i want to rename these files without timestamp and also remove header,trailer from that file..
Could... (35 Replies)
Hi,
Is there any other command echo does.
if
I am doing this operation for each line in my file. So its taking very long time to process more than 1000 records.
Is there any alternative way to write the above if statement (5 Replies)
Hi,
I'm new to Unix. I want to read the all the lines from a text file and write the alternate lines into another file. Please give me a shell script solution.
file1
-----
one
two
three
four
five
six
seven
newfile(it should contain the alternate lines from the file1)
-------
one... (6 Replies)
So tried:
cp -r -p test1/ user@machine:///srv/www/vhosts/domain.co.uk/httpdocs/backup/
but this didn't work either :(
Anyone able to help with this?
Many thanks
Mr M (3 Replies)
Instead of using an external Certification Authority CA such as Verisgn, in windows I have been told there is something called self ssl ( The server is its own Certification Authority)
In Solaris is there such an alternate?
In need it for apache.
Much appreciate for any guidence.
Thanks (2 Replies)
Hello every body,
Kindly support me to "copy a file without remove the contents of the target file"
Thanks in advance. :)
Ahmed Amer
Cairo,Egypt (2 Replies)
Hi,
Whats the alternate for wget in HP-UX ? (4 Replies)
Discussion started by: mohtashims
4 Replies
LEARN ABOUT REDHAT
ppmtosixel
ppmtosixel(1) General Commands Manual ppmtosixel(1)NAME
ppmtosixel - convert a portable pixmap into DEC sixel format
SYNOPSIS
ppmtosixel [-raw] [-margin] [ppmfile]
DESCRIPTION
Reads a portable pixmap as input. Produces sixel commands (SIX) as output. The output is formatted for color printing, e.g. for a DEC
LJ250 color inkjet printer.
If RGB values from the PPM file do not have maxval=100, the RGB values are rescaled. A printer control header and a color assignment table
begin the SIX file. Image data is written in a compressed format by default. A printer control footer ends the image file.
OPTIONS -raw If specified, each pixel will be explicitly described in the image file. If -raw is not specified, output will default to com-
pressed format in which identical adjacent pixels are replaced by "repeat pixel" commands. A raw file is often an order of magni-
tude larger than a compressed file and prints much slower.
-margin
If -margin is not specified, the image will be start at the left margin (of the window, paper, or whatever). If -margin is speci-
fied, a 1.5 inch left margin will offset the image.
PRINTING
Generally, sixel files must reach the printer unfiltered. Use the lpr -x option or cat filename > /dev/tty0?.
BUGS
Upon rescaling, truncation of the least significant bits of RGB values may result in poor color conversion. If the original PPM maxval was
greater than 100, rescaling also reduces the image depth. While the actual RGB values from the ppm file are more or less retained, the
color palette of the LJ250 may not match the colors on your screen. This seems to be a printer limitation.
SEE ALSO ppm(5)AUTHOR
Copyright (C) 1991 by Rick Vinci.
26 April 1991 ppmtosixel(1)