Hi,
I just started studying AI at the university of amsterdam and I heard there is some basic UNIX test which is available online. Well, if any of you knows a link to that test I would truely appreciate it.
Thanks a lot,
L (1 Reply)
I have been looking into searching various files to display output.
The search criteria will be a month and year to output various numbers in the files.
is there any way to do this with the TEST function or would it have to be another way? (4 Replies)
Plese help me on the below query.
for j in *.20071231* *.ctl *.dat
do
(
if then
cp "$base/*.*" "$base1"
fi
)
done
My requirement is for all files that has extension *.20071231* *.ctl *.dat
should be copied to another folder.
But those with caaa.20071231.log... (7 Replies)
I'm very new to C and could use a little help.
I'm testing to make sure the command is running as it's proper name, if not then fail.
if (strcmp(argv, "xinit") != 0) {
fprintf(stdout, "name = %s length = %d\n",argv,l);
usage(0);
}
This works if the command is... (3 Replies)
Hello, i have a script which checks if the user entered 8 numeric characters in the form of YYYYMMDD (birth date). If the user entered any non numeric characters, an error will be displayed:
# Check to see if the 8 characters are all numbers
# If not show error essage
# And prompt user... (4 Replies)
This is the code:
while test 1 -eq 1
do
read a
$a
if test $a = stop
then
break
fi
done
I read a command on every loop an execute it.
I check if the string equals the word stop to end the loop,but it say that I gave too many arguments to test.
For example echo hello.
Now the... (1 Reply)
Hello,
I need help with a test command.
Here is what I am trying to do :
I've got an interactive script that check if configuration files exist on 2 different directories, then all configuration files are print on screen by a short name.
My problem is when you type a "wrong name" or... (12 Replies)
Hello all,
working on Solaris 10 in ksh.
Basicly, in my function, i'm trying to test that all my unix cmd's are true (exit status 0) else you flag the rcControlRule to 1 without going into spagetti mode code testing every $? in a if statement.
The mdb is probably a little tricky cause it... (3 Replies)
I want to xheck if a file exists that uses wildcards as only the partial filename is known using the test Command, and when it exists then output just the number of lines in the file... do not include the filename. Then this output, is it captured by the CommandOutput or the ReturnValue as I want... (2 Replies)
Discussion started by: dsinco
2 Replies
LEARN ABOUT OSX
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)