Hello
I have compilation directory structure the top level Makefile is the one that contains all the sub directories
I want to set in this Makefile env variable say : setenv OPTIMIZATION_LEVEL "1"
and when all the sub directories done compiling it will set this variable to different lavel... (0 Replies)
Hi All,
May be this is a very simple question...
$ b=8
$ readonly b
$ echo $b
8
$ b=90
-bash: b: readonly variable
$ unset b
-bash: unset: b: cannot unset: readonly variable
I m not able to change the readonly mode of variable b
Please help me out..
Thanks
Nidhi (2 Replies)
How do I define a particular dir in front of PATH variable and then run some job and then at the end of job SET the PATH variable to original?
in a script, WILL something like this work:
ORIG_PATH=$PATH
export PATH=/dir1/dir2:$PATH
RUN SOME JOBS .....
unset PATH
EXPORT... (2 Replies)
Hi ,
I have script as follows ,
#!/usr/bin/ksh -x
if
then
alias echo="echo -e"
fi
MAX_ENTRIES=1024
nb_of_entries=`echo "$list_of_entries" | wc -w`
# Set number of tables
eval nb_of_tables=\`expr `expr $nb_of_entries / $MAX_ENTRIES` + 1 \`
# Output the number of tables
echo... (6 Replies)
Original script written on CentOS 6.3 with GNU bash 4.1.2
Destination system is Solaris 9 with GNU bash 2.05 (not changeable by me)
I have a script written on the linux side but now we need to provide a version to another site that "doesn't like linux". I've been going through changing the ] or... (13 Replies)
I have a script with a $PASSWORD variable. I unset it right after using it, just to minimize the chance it could be left around for a snooper. That worked just fine... until I used a password with a value of "P@ssw0rd" Now, unset (even with -f, even with the variable enquoted) tells me: unset:... (1 Reply)
Hi I want to read a text file and replace various number of spaces between each string in to a single "," or any other character .Please let me know the command to do so. My input file is a txt file which is the output of a SQL table extract so it contains so many spaces between each column of the... (2 Replies)
Discussion started by: Hari Prasanth
2 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)
02-04-2014
