I am working on a shell program that needs to accept alpha-numeric input (i.e., P00375); when I use a simple 'read' statement to read in the input (i.e., read LOG), I receive the message "p00375: bad number". How must I adjust my input statement to accept alpha-numerics?
Thanks!
Brent (3 Replies)
Hey all,
Just found your forum...Looks super rich with info! Can't wait to get through it all.
I am currently writing a web app in .net that telnets into a unix server (require uid + passwd), runs a command, and returns that output to be displayed on the web page.
I have gotten through the... (8 Replies)
I want to create a temp file which is named based on a search string. The search string may contain spaces or characters that aren't supposed to be used in filenames so I want to strip those out.
My thought was to use 'tr' with but the result is the opposite of what I want:
$ echo "test... (5 Replies)
Hi,
I require to replace 2 items:
1. replace start of all lines in a file with ' except the first line
2. replace end of all lines in a file with '||chr( except last line
I am able to do the entire file using
sed -e s/^/\'/g -e s/$/\'\|\|chr\(/g "$file" > newfile.txt
but am not yet able... (0 Replies)
Hi,
I require to replace 2 items:
1. replace start of all lines in a file with ' except the first line
2. replace end of all lines in a file with '||chr( except last line
I am able to do the entire file using
sed -e s/^/\'/g -e s/$/\'\|\|chr\(/g "$file" > newfile.txt
but am not yet... (3 Replies)
Hello,
I tried to write a bash script (code is below) that does scp files that contain a certain string, and that subsequently deletes only those files that have been copied (in my case new files are created every second so it is important to only delete those that have been copied). The key is... (0 Replies)
I want to give my long scripts to customer. The customer must not be able to read the scripts even if he has the password. The following command locks and unlocks the script but the set +x is simply ignored.
The code:
read -p 'Script: ' S && C=$S.crypt H='eval "$((dd if=$0 bs=1 skip=//|gpg... (7 Replies)
Hi All,
I am trying to replace the values inside <password> tag in an xml file but it doesn't replace certain passwords:
For eg:
Server/home/sperinc>cat TextXML.txt
<appIds>
<entry name="AccountXref">
<type id="ldap">
<realm>nam</realm>
... (7 Replies)
I am super new to scripting and I am trying to create a bash script that is interactive that will change other user passwords as well as a few other thing (ie. change SMB pw, see pw expiration,lock/unlock user).
I have started it by making it check to see if the username entered is in the... (2 Replies)
Discussion started by: thumbelina
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)