i have been trying to understand this chapter titled "Searching for Files and Text" for a few weeks now.
unfortunately, this chapter is one of those things, that no matter how hard you try and how long you try for, you are incapable of understanding (at least in my case)
this entire chapter,... (2 Replies)
Hi all !
Yesterday I defined an environmental variable PATH, but today when I restarted machine, I could not see that it was stored any place.
Is there any file where I could save the settings ?
I have quite a few env.variables defined, so I need a smarter way to define.
regards
D (5 Replies)
Hi all,
I have a script with those two lines :
test -f $PWD/mysetup.txt
. $PWD/mysetup.txt
I understand the first one, but could anyone explain me the role of the second one? All the thing I find is the usage :
Thx in advance (3 Replies)
Hi,
I'm using an array that contains compiler FLAGS
that need to be executed either before ./configure
or after the main 'make' command.
example of array containing compiler flags.
-------------------------------------------------
FLAGS="CFLAGS=\"-arch x86_64 -g -Os -pipe... (7 Replies)
I am writing a few korn scripts to be used by all our operators on several 4.1/4.2 AIX servers.
I want to create environmental variables that once set, can be read/modified by my scripts (ex: specific folders, file names, conventions, general values, ...). I thought this would be better then... (4 Replies)
Use and complete the template provided. The entire template must be completed. If you don't, your post may be deleted!
1. The problem statement, all variables and given/known data:
1)find all lines in file ,myf that contain all the words cat dog and mouse in any order and start with the letter... (1 Reply)
I have a text file called file1 which contains the text: "ls -l"
When I enter this command:
bash < file1 > file1
file1 gets erased. However if I enter this command:
bash < file1 > newfile
the output from "ls -l" is stored in newfile. My question is why doesn't file1's text ("ls -l") get... (3 Replies)
Hi there,
I have a very general question. I'm rather new to (bash) shell scripting and I don't understand how conditions work... I've read numerous tutorials but I don't get it. I really don't. Sometime what I do works, sometime it doesn't and that's frustating. So what's the actual difference... (0 Replies)
Discussion started by: hypsis
0 Replies
LEARN ABOUT SUSE
dropdb
DROPDB(1) PostgreSQL Client Applications DROPDB(1)NAME
dropdb - remove a PostgreSQL database
SYNOPSIS
dropdb [ option... ] dbname
DESCRIPTION
dropdb destroys an existing PostgreSQL database. The user who executes this command must be a database superuser or the owner of the data-
base.
dropdb is a wrapper around the SQL command DROP DATABASE [drop_database(7)]. There is no effective difference between dropping databases
via this utility and via other methods for accessing the server.
OPTIONS
dropdb accepts the following command-line arguments:
dbname Specifies the name of the database to be removed.
-e
--echo Echo the commands that dropdb generates and sends to the server.
-i
--interactive
Issues a verification prompt before doing anything destructive.
dropdb 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 the value begins with a slash, it is used as the directory
for the Unix domain socket.
-p port
--port port
Specifies the TCP 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.
-w
--no-password
Never issue a password prompt. If the server requires password authentication and a password is not available by other means such as
a .pgpass file, the connection attempt will fail. This option can be useful in batch jobs and scripts where no user is present to
enter a password.
-W
--password
Force dropdb to prompt for a password before connecting to a database.
This option is never essential, since dropdb will automatically prompt for a password if the server demands password authentication.
However, dropdb will waste a connection attempt finding out that the server wants a password. In some cases it is worth typing -W
to avoid the extra connection attempt.
ENVIRONMENT
PGHOST
PGPORT
PGUSER Default connection parameters
This utility, like most other PostgreSQL utilities, also uses the environment variables supported by libpq (see in the documentation).
DIAGNOSTICS
In case of difficulty, see DROP DATABASE [drop_database(7)] and psql(1) for discussions of potential problems and error messages. The
database server must be running at the targeted host. Also, any default connection settings and environment variables used by the libpq
front-end library will apply.
EXAMPLES
To destroy the database demo on the default database server:
$ dropdb demo
To destroy the database demo using the server on host eden, port 5000, with verification and a peek at the underlying command:
$ dropdb -p 5000 -h eden -i -e demo
Database "demo" will be permanently deleted.
Are you sure? (y/n) y
DROP DATABASE demo;
SEE ALSO createdb(1), DROP DATABASE [drop_database(7)]
Application 2010-05-14 DROPDB(1)