Ah, you've updated the post while I was working on your code. Anyway, I'll post my solution too.
I presume you want to do these checks over all lines of an inputfile containing the pipe delimited data, and not just one line. In such case, your awk statement would greedily fetch all the $1 and $2's of inputfile.
I am trying to validate user input, at the moment what i have is as below :-
echo "\n\tPlease, enter package name to import: \c"
read PACKAGE
So far this works perfect , But if the user does not input any thing it stalls :(
What I need is, If the user does not enter the name of the... (9 Replies)
Hi guys!
Im tryin to set up a login script that allows a user to login with only the following "forename.surname" .
The username all contain lowercase letters so thats not a problem to sort out, but im having problems making sure that they can only enter 1 " . " . the code i have so far is this... (1 Reply)
I'm kinda new in shell scripting. How do i validate an input from a user to conform to requirement. For example,
echo "Enter First Name: "
read FName
echo "Enter Date of Employment (dd/mm/yyyy): "
read DoE
If the user enters data that is alphanumeric, it accepts it. I hope i've... (1 Reply)
I am validating a form using php script and I want to "echo" the error message near to the text box itself & not below all the controls....Can I Position the display messages ?..Pls help me... (2 Replies)
Hi,
I am new to Unix shell scripting and need help to add some validation to an existing script.
I've made a script that takes two argument (input) but I want the script to display an error message when nothing (null) is entered. So far I managed to validate the fist argument but fail to... (2 Replies)
Hi All,
I need to write a small piece of code to check the following.
name should contain (A-Z), spaces, hyphens & apostrophes
I need to generate regular expressions for the same.
Please help me out as i am not familiar with regular expressions. (1 Reply)
Hey people, I got small little error which says I entered too many argument in the if else list.
The stock contains a list of information.
The 4th field consist of the quantity available, so I'm trying to alert the user that the stock is less than 3 and needed to restock.
Is this the correct way... (7 Replies)
Hi there,
As a part of file validation, I needed to check for delimiter count in the file.
My aim is to find, how many records have failed to have predefined numbers of delimiters in the file.
My code looks like below
i=`awk -F '|' 'NF != 2 {print NR, $0} ' ${pinb_fldr}/${pfile}DAT |... (3 Replies)
Hi All
I am trying to validate a value using if condition
requirement is need to check whether its a valid numeric value
the input contains ( space, #N/A and negative and positive decimal values and Zeros)
if it contains the space, I need to display the error message as space
... (15 Replies)
I am learning Shell scripting on own. I am trying to do an assignment to get details from the user like username their individual marks ,DOB and send a report in mail with the Details calculated like total and average.
validate_marks() {
local Value=$1
if &&
then
return 0
else... (1 Reply)
Discussion started by: JayashreeRobin
1 Replies
LEARN ABOUT V7
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)