12-06-2010
9 More Discussions You Might Find Interesting
1. Shell Programming and Scripting
There are files on a remote server with the file name ending in "mm-dd-yy.txt". The script I am running is:
mls "Daily_Service_Text_File_*" /my/local/dir/Filelisting.txt
nawk -F_ -f file.awk /my/local/dir/Filelisting.txt | sort -k1n | cut -f2- | tail -1
It worked up too "12-31-07.txt" but... (3 Replies)
Discussion started by: bbbngowc
3 Replies
2. Shell Programming and Scripting
I found this very useful perl script that will check a remote ftp server, search for files of a specific time and get them. When I run the script it works, but it gave me the following error:
Couldn't get filename_12-13-07.txt Bad file number
What in this script would cause this? I know... (2 Replies)
Discussion started by: bbbngowc
2 Replies
3. UNIX for Dummies Questions & Answers
Hi people I am trying to learn this code and see how it relates to the old DOS days. I have a line of code that I am not sure what the first part does. Any help will be greatly appreciated.
It is from a Save command that is used to backup files to a directory.
It goes like this
if ;then... (10 Replies)
Discussion started by: coyote1967
10 Replies
4. Shell Programming and Scripting
Hi,
I have a script at the moment of which reads in simply what the latest version is within a folder i.e. v001, v002, v003 etc and then stores this latest version in a variable i.e. $LATEST would echo v003. I have then cut this string so that I only consider the 003 part. I would then like to... (3 Replies)
Discussion started by: cyberfrog
3 Replies
5. UNIX for Dummies Questions & Answers
I'm reading about command substitutions and came across this little function in my book:
function lsd
{
date=$1
ls -l |grep -i "^.\{42\}$date"|cut -c55-
}
it's a little example which is supposed to select files by modification date, given as an argument to the function.
I... (3 Replies)
Discussion started by: Straitsfan
3 Replies
6. Programming
I am trying to simplify the coding in a script I was given, but it was written 7-10 years ago and is pretty complicated. below is a tidbit, if someone can break it down for me I would appreciate it.
sub ParseText
{
my ($line, $key, $value, $sub, $script);
foreach $line (@_)... (0 Replies)
Discussion started by: callyvan
0 Replies
7. Programming
I have a string, eg 7f30.3 and I want to store things in the following way
npos = 7
decform = true
width = 30
ndp = 3
I need to read each character one by one. I am coding in fortran but I can try to code it should answer be given in C in the above way. (2 Replies)
Discussion started by: kristinu
2 Replies
8. Shell Programming and Scripting
Hi folks,
I have a scenario to convert the update statements into insert statements using shell script (awk, sed...) or in database using regex.
I have a bunch of update statements with all columns in a file which I need to convert into insert statements.
UPDATE TABLE_A SET COL1=1 WHERE... (0 Replies)
Discussion started by: dev123
0 Replies
9. UNIX for Beginners Questions & Answers
Dear experts,
I am a relative novice in the Unix and came across a very useful code that I regularly use for my research blindly. I am wondering if any of the professional members could kindly briefly explain to me what the code actually does?
Many thanks in advance
The script is
awk... (4 Replies)
Discussion started by: arsalane
4 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)