07-18-2013
10 More Discussions You Might Find Interesting
1. UNIX for Dummies Questions & Answers
Hi All,
Im trying to write a Unix FTP batch file within a program called SAS. Now i already have one for windows which works fine, but it doesnt work within unix.
I've been told that some of the commands are different from Windows to Unix, and ive looked round and am completely stumped...
... (0 Replies)
Discussion started by: shenniko
0 Replies
2. What is on Your Mind?
Here is the famous line 2238 of Unix V6 which is part of some of the most delicate parts of the kernel, context switching.
This comment received huge publicity and just may be the the most famous source code comment in computing history.
2230 /*
2231 * If the new process paused because it... (0 Replies)
Discussion started by: Neo
0 Replies
3. UNIX for Dummies Questions & Answers
I want to replace this line : "test compare visible] true" and make it "#test compare visible] true".
How can I do it ? And it should be checked in many sub folder files also. (6 Replies)
Discussion started by: manoj.b
6 Replies
4. Shell Programming and Scripting
Hi all,
I would want to remove all comments from my ruby/rails program. It may seem like a simple task, but it is not so. Because you need to have your tool implemented as like your language parser which is actually not so easy.
And am in the search of it, to remove comment from ruby/rails.... (4 Replies)
Discussion started by: thegeek
4 Replies
5. Shell Programming and Scripting
Again a comment removal requirement from me, refer my previous problem & solution for removing comment from ruby scripts: https://www.unix.com/shell-programming-scripting/118296-best-way-removing-comment-ruby-program.html
This time, it is for stripping of comments from Shell Script. I search for... (2 Replies)
Discussion started by: thegeek
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6. Shell Programming and Scripting
I have a requirement where I want to add a comment '#' in my crontab, run a process, than remove the '#' I added.
Example cron
#5,10 * * * * ls -lt /tmp
10,5 * * * * ls -lt /var
I would like to be able use sed or awk to add a '#' at the begining of each
line. After the command... (4 Replies)
Discussion started by: BeefStu
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7. Shell Programming and Scripting
I need to comment the lines starting with pattern "exclude" or "exclude=". If the work exclude comes at any other part, ignore it. Also, ignore, excludes, excluded etc. Ie only comment the line starting with exclude.
File contents.
exclude
exclude=
hi I am excluded
excludes
excludes=
... (9 Replies)
Discussion started by: anil510
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8. UNIX for Dummies Questions & Answers
I have tried a lot, Need your help guys.
SAS Program:
data one ; /* Data step */
Input name $; /*Dec variables*/
I want to remove the commented part(/* Data step */) alone. I have tried using sed command but it is deleting the entire line itself. i need unix command to separate this and... (1 Reply)
Discussion started by: saaisiva
1 Replies
9. Shell Programming and Scripting
i have to remove the commented (/* . . . .*/) part which starts in one line and ends in other.help me with generic code because i have 1000 to 10k lines code which i have to remove.
data one;
set work.temp;
input name age;
infile filename;
/* dfsdf
dsfs
sdfdf
dsdd
sdfsf
sdfsf
sfs... (4 Replies)
Discussion started by: saaisiva
4 Replies
10. Shell Programming and Scripting
Hi All,
I am copying a file from windows to UNIX. After that copying it have the ctrl+M character in the file at the line break. But the file contains the data that also have ctrl+M. I want to re move the ctrl+M at the end of the line alone.
My file structure is XML and last line doesnt... (3 Replies)
Discussion started by: Agantrope
3 Replies
LEARN ABOUT ULTRIX
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)