Dear All
I am facing a problem with my script.
I have to found the primary group of users .
So first I selected all the groups and users register from a specific user : ONE
Then I am making a file with all groups attached to the user : ONE
Then I am making a file with all... (8 Replies)
echo -e "Enter in a username : \c"
read username
grep "^$username:" /etc/passwdWhat I'm trying to do is take in a username from my script and I need to be able to check if that username already exists. If it does the script should display a message saying that the user already exists and exit.
... (2 Replies)
I want to create a shell script for a menu selection consisting of users defined on the machine. To an administrator having the privileges, the selection menu will look as follows:
Select the user you want to define the variables for:
1) my-username-1
2) my-username-2
etc
Then there would be a... (7 Replies)
Hi, I am a new on this forum but i like :) I need a script in bash which will be crating a new user with folder for websites. For example: I will run this program and he creating a new user(with my name) and folder whcich name like user and if i will localho/~user in browser, she show me files from... (1 Reply)
Hi Experts,
I am new to scripting. We have around 400 Linux servers in our environment. I want to add a new user to a perticular group on all the servers using SSH.
Requirements:
1) Need to take the server names from a text file.
2) Login into each server and check whether perticular... (1 Reply)
Hello Everybody
i am a newbie to the bash scripting.please can someone help me out here.i want to write a script on creating 10 users with passwords and comparing the users to the ones in /etc/passwd file.am i gonna use arrays in creating the 10 users or what?and again, how do i compare both... (1 Reply)
Hi friends could you please share me the script to create more users in one server except newusers, is there any option to change secondary group and how to print passwd and changing the age all these things how can i edit in newsers.. please help me (0 Replies)
for UserName in `cat users` ; do useradd -d /u02 -s /usr/libexec/openssh/sftp-server -G ftp-users $UserName ;
PassWord=$( echo $( tr '' '' <<< ${UserName:0:1} )${UserName:1} ) ;
echo "$PassWord@123" | passwd $UserName --stdin ; done
can some one explain what the bold text do
Please use... (5 Replies)
Discussion started by: James0806
5 Replies
LEARN ABOUT LINUX
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)