Assuming that the first field will always be exactly one of those three characters, you could also try something like:
As much as I appreciate this smart an compact solution, it has some minor drawbacks:
- the leading single quote is missing for the script part
- the "D" and "H" need double quote to become string constands else they're (empty) variables
- ALL input lines not beginning with "D" or "H" will be stuffed into the tra_name file, which is not what was requested in post#1 (acknowledged that Don Cragun assumed only D, H, T)
What is the correct mkfs syntax to create mirrored disk files systems? I need to make the file system 20gb. For example:
machine# mkfs -F ufs /dev/md/dsk/d40
size not specified
ufs usage: mkfs special size(sectors) \
-m : dump fs cmd line used to make this partition
-V : print this... (4 Replies)
I whant a create some files in the certain range.
For example, begin 8811 and finishing 8878
I know one good decision
touch 88{11,12,13,14,15,16,...,...,78}
I try touch 88, but i don't have results :( Bash create file with name 88 :)
But it very long command :( I wanna create it easy ... (6 Replies)
Hello
I have a ton of files in a directory of the format app.log.2008-04-04
I'd like to run a command that would archive each of these files as app.log.2008-04-04.tgz
I tried a few combinations of find with xargs etc but no luck.
Thanks
Amit (4 Replies)
Hi there
how to create a command in csh that would print files only from 1 folder but as an argument takes home directory for e.g. in my home diecrtory I have 3 folders unix, windows,mac and alot of files. and I running the program as ./op ~
this should return me files from unix folder without... (1 Reply)
Hi,
i need a single command to create multiple empty files(no trailing lines as well) and empty the files if already existing.
please let me know or if this has been ansered, if some ocan share the link please, thanks
> newfile.txt
or
:> newfile.txt
do not work (4 Replies)
I need a script file for backup (zip or tar or gz) of old log files in our unix server (causing the space problem). Could you please help me to create the zip or gz files for each log files in current directory and sub-directories also?
I found one command which is to create gz file for the... (4 Replies)
08:29 < xsi> >{respo,nd}.php bash: {respo,nd}.php: ambiguous redirect
08:31 < geirha> xsi: maybe you want tee
So I was advised to do so. And I can't create two OR MORE files at once with {a,b,c,d,e,f}.php
(which I quickly now need to create and to learn to create in the future to quickly... (2 Replies)
Hi,
Can anyone help me how to convert a .csv file to a .pdf file using shell script
Thanks (2 Replies)
Discussion started by: ssk250
2 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)