Note that the expansion is not done when the assignment is made, only when the variable is expanded (and not quoted). See the output of:
In ksh93 and bash with extglob set, you can use:
Better might be to use an array (bash and ksh93):
I've been a Linux user for quite some time, started out with Red Hat and Mandrake, and just recently moved to Slackware linux.... my question is this:
Is there a big difference between Linux and Unix? If so, what?
I was just looking at Sun's Solaris 8 thats free for download on Intel... (5 Replies)
Can anyone tell me if there is a way to remove the encryption from Data CDs by UNIX? Or does anyone know of a program that can remove the encryption?
I would much appreciate it!
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When i type cd etc/shadow it says that file or directory doesnt exist? Is there a way to show this or am i typing something wrong? :confused: (6 Replies)
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Hello. I'm a complete newbie to C programming. I have a C program that wasn't written by me where I need to write some wrappers around it to automate and make it easier for a client to use. The problem is that the program accepts standard input to control the program... I'm hoping to find a simple... (6 Replies)
Hi All,
I am new to Unix , I have entered 'cd w' in command prompt and pressed tab key , A tab space is generated instead of listing the folders or files that starts with 'W' . What should i do to get it working:confused:
Thanks,
Deepak (2 Replies)
Hello, I have a quick question that is not related to homework in any way shape or form (in case anyone wanted to know). My question is thus:
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Cheers!
In /etc/syslog.conf, if an error type is not specified, is it logged anywhere (most preferable is it logged to /var/log/messages) or not?
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Discussion started by: dr1zzt3r
6 Replies
LEARN ABOUT DEBIAN
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)