i am new in linux environment .I have used vi editor of Unix to get a programe compiled through "gcc ".kindly give me the options to get a program compiled & executed written in c on vi editor.
I want the command to compile a file and the command to get that compiled file executed with any... (2 Replies)
i would like advice on the usbject of c programming (in the middle of reading a book on C). could i benefit more if i apply that knowledge in the unix format if i were able to, or would that take the point out of learning C, basically I want to stay away from strying too far away from unix and use... (1 Reply)
Several months ago I found a link that explained the difference between how a Unix Systems Admin would do scripting compared to what a Unix Programmer would do.
It showed a basic script and then show several iterations that explained how the Systems Admin would change it to make it better. I was... (0 Replies)
Hello all!!
I am new to programming, and to this forum. :D
I am having sort of a problem. Me and my coworker are working on a code, both of us are stumped on a few things.
One is we have a whole log file, i have found how to extract by column, but not by row. I need to extract by both.:confused:... (7 Replies)
Hello,
I am trying to learn Networking Programming in C in unix enviorment. I want to know how good it is to become a network programmer. i am crazy about Network programming but i also want to opt for the best carreer options. Anybody experienced Network Programmer, please tell me is my... (5 Replies)
Hi Guys,
I am willing to write some programs in C/C++ for Solaris machine.
I am pretty good in C++ programming for PC.
But I have some questions, while starting programming in solaris.
1. Which one is the most suitable & easy to use compiler?
(Most probabaly I will use vi editor to edit... (4 Replies)
Can someone help me on suggesting some ways to access the memory content in RAM directly from C/C++ source code.
Please provide me any book name or any URL so that I can get an exhaustive
knowledge over it.
If possible please give me some tips on interacting with hardwares directly
through... (3 Replies)
Hello.
I like Linux and C programming language. Allways wanted to understand kernel and become a Linux system programmer. And I also like Objective-C and iOS. These two programming areas have relations:
1. Linux and iOS are UNIX-like systems, POSIX compliant.
2. It is useful to know C language... (2 Replies)
Discussion started by: Rockatansky
2 Replies
LEARN ABOUT REDHAT
dropuser
DROPUSER(1) PostgreSQL Client Applications DROPUSER(1)NAME
dropuser - remove a PostgreSQL user account
SYNOPSIS
dropuser [ options... ] [ username ]
DESCRIPTION
dropuser removes an existing PostgreSQL user and the databases which that user owned. Only users with usesuper set in the pg_shadow table
can destroy PostgreSQL users.
dropuser is a shell script wrapper around the SQL command DROP USER [drop_user(7)] via the PostgreSQL interactive terminal psql(1). Thus,
there is nothing special about removing users via this or other methods. This means that the psql must be found by the script and that a
database server is running at the targeted host. Also, any default settings and environment variables available to psql and the libpq
front-end library do apply.
OPTIONS
dropuser accepts the following command-line arguments:
username
Specifies the name of the PostgreSQL user to be removed. This name must exist in the PostgreSQL installation. You will be prompted
for a name if none is specified on the command line.
-e
--echo Echo the queries that dropuser generates and sends to the server.
-i
--interactive
Prompt for confirmation before actually removing the user.
-q
--quiet
Do not display a response.
createuser also accepts the following command-line arguments for connection parameters:
-h host
--host host
Specifies the host name of the machine on which the server is running. If host begins with a slash, it is used as the directory for
the Unix domain socket.
-p port
--port port
Specifies the Internet TCP/IP port or local Unix domain socket file extension on which the server is listening for connections.
-U username
--username username
User name to connect as (not the user name to drop)
-W
--password
Force password prompt (to connect to the server, not for the password of the user to be dropped).
ENVIRONMENT
PGHOST
PGPORT
PGUSER Default connection parameters
DIAGNOSTICS
DROP USER
All is well.
dropuser: deletion of user "username" failed
Something went wrong. The user was not removed.
If there is an error condition, the backend error message will be displayed. See DROP USER [drop_user(7)] and psql(1) for possibilities.
EXAMPLES
To remove user joe from the default database server:
$ dropuser joe
DROP USER
To remove user joe using the postmaster on host eden, port 5000, with verification and a peek at the underlying query:
$ dropuser -p 5000 -h eden -i -e joe
User "joe" and any owned databases will be permanently deleted.
Are you sure? (y/n) y
DROP USER "joe"
DROP USER
SEE ALSO createuser(1), DROP USER [drop_user(7)]
Application 2002-11-22 DROPUSER(1)