How to validate user's input..? Post: 302777597

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validate input from user for file name

Hello, This may have been addressed already somewhere, however I am looking for the easiest/shortest way to validate a response from a user for a file name. The file name should not have any of the following characters ~`!@#$%^&*()_-+={|\:;"'<,>.?/ Further the response should not have any...

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How to validate input values

Hi How would i validate value of a variable whether it is number,date or string Thanks in advance Sas

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the user inputs names that have to be inside square brackets I want to check if the user puts the brackets and if not ask him to re-enter the names

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Validate and sort input

Hi, This will most likely be a simple answer. Currently I have a situation where my script will be sent various options: -o1 -o2 -oe3@somthing.com Now, if I want to run a certain command based on the option I am sent, I am doing the following. for o in $(echo $options) do if ...

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I'm trying to only read price (FLOAT (i.e 1.10, 3.14, etc etc)) If the input is just an integer, I will add a .00 behind. (i.e 3 becomes 3.00 , 20 becomes 20.00) If the input is without 2 decimal places, I'll add a 0. (i.e 3.1 becomes 3.10) I tried using the below code, it works but I don't...

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Another validate input Question.

I'm writing a bash shell script to 'help' me post to susepaste (I can NEVER remember the time options). Here's the code: #!/bin/bash ########## # # Project : personal script. # Started : Wed Aug 03, 2011 # Author : Habitual # Description : susepaste c-li script with user...

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[bash] how is proper way to validate user input

hi all, i have a script that need user input provide all variables that needed to complete a job. this is my current script: echo "type file source and it full path :" read INPUTFILE if || ; then echo "ERROR: you didn't enter a file source or file source is not...

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Validate input files daily

We have a job which we need to run on daily bases, before loading data in a table we need to validate whether the input file is received or not. Daily client will place the files in a particular path.Below files which I need to process for 04/01/2013(Load date)....

LEARN ABOUT OSX

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)

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