How to create and use alias command in linux for DBA related task

An alias is a short cut command for long command. We may type short alias name to run a longer command or sql script file.

$ alias shortName="custom command here"

Aliases can be creates as temporary or permanent. A temporary alias will use for existing session only and permanent alias will work any time for quick execution of command.

Temporary alias:-

$ alias  space='df -h'

$alias lg='sqlplus apps/apps'

To run the command not need to type log command just type lg to login in oracle database using apps credential.

[appltest@apps scripts]$ lg

SQL*Plus: Release 10.1.0.5.0 - Production on Fri Sep 25 19:32:36 2020

Copyright (c) 1982, 2005, Oracle.  All rights reserved.

Connected to:

Oracle Database 11g Enterprise Edition Release 11.2.0.4.0 - 64bit Production

With the Partitioning, OLAP, Data Mining and Real Application Testing options

SQL> show user

USER is "APPS"

Permanent alias:-

To keep permanent alias we need to add below in .bash_profile.

$vi .bash_profile

. /oracle/apps/apps_st/appl/APPS*.env

alias stopall='$ADMIN_SCRIPTS_HOME/adstpall.sh apps/***** ;sleep 20;pkill -fu applmgr'

alias startall='$ADMIN_SCRIPTS_HOME/adstrtal.sh apps/*******'

:wg!

In case you need to shutdown the ebs . Here no need to execute environment variable , login and run adstrtall.sh. You just type stopall and startall as below.

$stopall   ---> To shutdown EBS services.

$startall  ---> To start EBS services.