04-28-2011
Performance is usually secondary to data safety, integrity and privacy. Allowing rsh access, moreover to root, is quite questionable.
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I have nearly 10 users who login into the HP server (D series, HP UX 10.20) with the same UNIX user name, "liveuser", and they start the UNIX based transactions. If I create separate UNIX user-ids for all the 10, will the system performance improve? (1 Reply)
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shouldn't they give the same output?
echo `echo \`date\``
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Hi,
I would like to know what is the difference between executing the mount command in the following ways...
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does it make any difference in terms of performance while using any of the below mentioned code for the same requirement which processes continuously coming files in the I/P directory .
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HI all,
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pm2srv:/var/opt/temip/vf/scripts/saiki#awk '{RS = ":"} ; {print $0}' testf2
hey:wasup:howru:
Yes
I
am
fine
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hey
wasup
howru
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Hi,
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Hi all,
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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)