Get into the oscg base directory at the command line.
Now run the help command to see that things are as expected
$ ./io help
Usage: io command [component1 component2 ...]
Available commands:help - Show this help file
info - Display OS or component information
list - Display installed & available components
status - Display status of installed server components
start - Start server components
stop - Stop server components
enable - Enable a server component
disable - Disable a server component from starting automatically
update - Retrieve new list of available components
upgrade - Upgrade installed components to newer (compatible) versions
install - Install a component
2.) Demonstrate the io command line environment.
The info command lists information about the OS or a component
$ ./io info
User & Host: denisl localhost 127.0.0.1
Os: Linux EL8 x64
Hardware: 16 GB, 8 x Intel Core i7-2820QM @ 2.30GHz
$ ./io info pg15
Project: pg (http://postgresql.org)
Component: pg15 15.1 (Linux amd64 & arm64, OSX)
Doc: http://www.postgresql.org/docs/15/
The list command displays installed and available components. It confirms
that only the core Postgres server component, in this case pg15, is installed
and enabled by default.
$ ./io list
Component Version Port Status
------------ ------------ ------ ------------
pg14 14.6 Not Installed
pg15 15.1 5432 Installed
The status command confirms whether server components are listening on
their assigned ports.
$ ./io status
pg15 stopped on port 5432
The start command will start up whatever servers are installed (in this case pg14)
$ ./io start
pg15 starting...
Running the status command displays information about installed server components.
$ ./io status
pg15 running on port 5432
Now lets use the stop command to shutdown postgres.
$ ./io stop
pg15 stopping...
3.) Install additional components
Use the install command to provision additional components such as pg12.
Using the "--start" option will install and then start PG with the default passwd = 'password'. Because port 5432
was in use, we automagically start on port 5433.
$ ./io install pg14 --start
Get:2 pg14-14.6-amd
Unpacking pg14-14.6-amd.tar.bz2
pg14 Installed & Started
$ ./io list
Component Version Port Status
------------ -------- ------ ------------
pg14 14.6 5433 Installed
pg15 15.1 5432 Installed
We now run the status command to confirm that both the PG servers are installed.
$ ./io status
pg14 (Running on port 5433)
pg15 (Running on port 5432)
