Hi
I have a question that after trying tirelessly I cant solve. I'm not great wth UNIX and wonder if anyone could help. I have to create a shell program using functions that prompts for a user ID. I must then verify that the user Id corresponds to an account on the system. If a legal user Id is... (1 Reply)
Hi
I have a question that after trying tirelessly I cant solve. I'm not great wth UNIX and wonder if anyone could help. I have to create a shell program using functions that prompts for a user ID. I must then verify that the user Id corresponds to an account on the system. If a legal user Id is... (16 Replies)
Perderabo *
Unix Daemon
*
Join Date: Aug 2001
Location: Ashburn, Virginia
Posts: 9,071
Using head and tail like that is terribly inefficient. I decided to try a rewrite. Sheesh...I spent all morning on this....
Code:
#! /usr/bin/ksh
#
# scroller --- display text, but sleep every... (0 Replies)
Hi. I'm working with two BASH shells in order to perform two tasks. For simplicity, suppose that at Shell #1 I'm executing this program:
sleep 100
whose PID is 263. Meanwhile Shell #2 is waiting for its termination to follow with a second one.
I tried with:
wait 263
# Script for second... (4 Replies)
Hi,
I am trying to supply password to scp with out having manual interaction. Like, store the password in a variable and it should be supplied to the scp when it prompted for the password. Is there any other way than the user authentication and using "expect" in perl script. i.e is this... (3 Replies)
Hopefully someone can help here. I have a script written in korn by a former employee and I am trying modify it. Most of the script works except when we run it and pass the tesxt 'unlock' as a parameter when we want to unlock a file in RCS (revision control system). When we run this script and use... (2 Replies)
I am writing a BASH script to update a webserver and then restart Apache. It looks basically like this:
#!/bin/bash
rsync /path/on/local/machine/ foo.com:path/on/remote/machine/
ssh foo.com sudo /etc/init.d/apache2 reloadrsync and ssh don't prompt for a password, because I have DSA encryption... (9 Replies)
I'm trying to write a script the simplifies the execution of a program:
After starting the program (sh ~/.mfix/model/make_mfix) I am prompted four times for options:
Do you need SMP version? (y/n)
Do you need DMP version? (y/n)
Do you need debug version? (y/n)
Force re-compilation of... (2 Replies)
Hi all,
I am trying to analyze my data, and I will need your experience.
I have some files with the below format:
res1 = TYR res2 = ASN
res1 = ASP res2 = SER
res1 = TYR res2 = ASN
res1 = THR res2 = LYS
res1 = THR res2 = TYR
etc (many lines)
I am... (3 Replies)
Discussion started by: Tzole
3 Replies
LEARN ABOUT DEBIAN
viewsu
VIEW-OS(1) General Commands Manual VIEW-OS(1)NAME
viewsu - change (virtual) user ID or become (virtual) superuser
SYNOPSIS
viewsu [options] [username]
DESCRIPTION
The viewsu command is used to become another user during a login session. Invoked without a username, viewsu defaults to becoming the supe-
ruser. The optional argument - may be used to provide an environment similar to what the user would expect had the user logged in directly.
This command is the View-OS counterpart of the su(1) command. The value of $PATH is reset to /bin:/usr/bin for normal users, or
/sbin:/bin:/usr/sbin:/usr/bin for the superuser. This may be changed with the ENV_PATH and ENV_SUPATH definitions in /etc/login.defs.
OPTIONS
The options which apply to the viewsu command are:
-c, --command COMMAND
Specify a command that will be invoked by the shell using its -c.
-, -l, --login
Provide an environment similar to what the user would expect had the user logged in directly.
When - is used, it must be specified as the last viewsu option. The other forms (-l and --login) do not have this restriction.
-s, --shell SHELL
The shell that will be invoked.
The invoked shell is chosen from (highest priority first):
o The shell specified with --shell.
o The shell indicated in the /etc/passwd entry for the target user.
o /bin/sh if a shell could not be found by any above method.
SEE ALSO su(1), linux.defs(5)AUTHORS
View-OS is a project of the Computer Science Department, University of Bologna. Project Leader: Renzo Davoli.
<http://www.sourceforge.net/projects/view-os>
Howto's and further information can be found on the project wiki <wiki.virtualsquare.org>.
NOTE
Most part of the text is taken from su(1).
VIEW-OS: a process with a view August 5, 2009 VIEW-OS(1)